EAON - INFO N° 59 2007, October to December |
169 observations have been performed during 2007, October to December (31
positive or possibly positive) about 83 events
( 13 positive or possibly positive) by 81 observers, from the 16 following
countries (and numbers of observers) :
AT = Austria ( 1 ), BE = Belgium ( 7 ), BY = Belarus ( 1 ), CH = Switzerland
( 3 ), CZ = Czech Republic ( 6 ),
DE = Germany (9 ), ES = Spain ( 6 ), FR = France ( 29 ), HU = Hungary ( 1 ), DK
= Denmark ( 2 ), IT = Italy ( 5 ),
NL = The Netherlands ( 5 ), PL = Poland ( 1 ), PT = Portugal ( 1 ), UA = Ukraine
( 2 ), UK = United Kingdom ( 3 ).
You will find in the table hereafter the list of the observers’ abbreviations in alphabetical order, with the number of observations made by each of them. Welcome to the new observers (in bold characters) !
ABC |
Claus ABEL |
1 |
DK |
JMC |
Jan MOCEC |
1 |
CZ |
|
AEF |
Fernand VAN DEN ABBEELE |
3 |
BE |
JNK |
Tomas JANIK |
1 |
CZ |
|
AKF |
Andre KNOEFEL |
2 |
DE |
JSZ |
Jacques SANCHEZ |
1 |
FR |
|
ALY |
Arnaud LEROY |
1 |
FR |
JVA |
Jean VILAR |
1 |
FR |
|
AUD |
Maurice AUDEJEAN |
7 |
FR |
KTS |
Stefano KLETT |
1 |
CH |
|
BDM |
Michel BONNARDEAU |
2 |
FR |
|||||
BLI |
Morgens BLICHFELDT |
1 |
DK |
|||||
BNN |
Roland BONINSEGNA |
2 |
BE |
LEI |
Frank LEITER |
1 |
DE |
|
BOL |
Simone BOLZONI |
3 |
IT |
MAA |
Andrea MANNA |
1 |
CH |
|
BTG |
René BOURTEMBOURG |
2 |
BE |
MBU |
Michel BOUTET |
3 |
FR |
|
BUL |
Henk BULDER |
3 |
NL |
MHL |
Marc MICHEL |
1 |
FR |
|
CNS |
Oscar CANALES MORENO |
1 |
ES |
MID |
Thierry MIDAVAINE |
1 |
FR |
|
Francois COLAS |
1 |
MJL |
Jose Luis MARCO LARRIBA |
1 |
ES |
|||
with Jean LECACHEUX ( JLX) |
1 |
MVZ |
Zdenek MORAVEC |
1 |
CZ |
|||
COL |
Lorenzo COMOLLI |
1 |
IT |
NBL |
Wim NOBEL |
3 |
NL |
|
Jean CAQUEL |
1 |
FR |
NNE |
Claude NINET |
1 |
FR |
||
with Gerard VAUDESCAL (VDC) |
1 |
FR |
NVI |
Vitali NEVSKI |
1 |
BY |
||
CRB |
Massimo CORBISIERO |
1 |
IT |
OJR |
Jose RIPERO OSORIO |
1 |
ES |
|
DGG |
Gerhard DANGL |
6 |
AT |
OKE |
Oliver KLOES |
1 |
DE |
|
OTA |
Otta SANDOR |
1 |
CZ |
|||||
Thierry PAUWELS |
2 |
|||||||
DNZ |
Helmut DENZAU |
1 |
DE |
with Pierre VINGERHOETS (VIG) |
3 |
|||
DSY |
Dave STOREY |
1 |
UK |
with Anthony JONCKHEERE |
1 |
|||
ELL |
Andrew ELLIOTT |
4 |
UK |
PCI |
Paolo CORELLI |
3 |
IT |
|
ENK |
Peter ENSKONATUS |
1 |
DE |
PRB |
Vaclav PRIBAN |
1 |
CZ |
|
FAP |
Pierre FARISSIER |
1 |
FR |
PSY |
Raymond PONCY |
1 |
FR |
|
FAU |
Gerard FAURE |
1 |
FR |
RAI |
Manfred RAIN |
2 |
DE |
|
FBI |
Frederic BRION |
1 |
FR |
|||||
Denis FIEL |
1 |
|||||||
with Olivier DECHAMBRE (ODC) |
1 |
ROY |
Rene ROY |
1 |
FR |
|||
FMY |
Francois MEYER |
1 |
FR |
RSG |
Gerald ROUSSEAU |
1 |
FR |
|
FOC |
Mario FERNANDEZ-OCANA |
2 |
ES |
RTH |
Wolfgang ROTHE |
5 |
DE |
|
RVA |
Joan ROVIRA |
2 |
ES |
|||||
SMD |
Libor SMID |
1 |
CZ |
|||||
FST |
Franz STARK |
1 |
DE |
SPL |
Jerzy SPEIL |
1 |
PL |
|
GAR |
Faustino GARCIA de la CUESTA |
1 |
ES |
SPS |
Stefano SPOSETTI |
3 |
CH |
|
GCV |
Rui GONCALVES |
2 |
PT |
SZA |
Sandor SZABO |
1 |
HU |
|
HDG |
Henk DE GROOT |
2 |
NL |
THO |
Bertrand THOORIS |
4 |
BE |
|
HRU |
Harrie RUTTEN |
3 |
NL |
trt |
TAROT (see below) |
34 |
FR |
|
JGS |
Malcolm JENNINGS |
4 |
UK |
VVP |
Pierre VALVIN |
1 |
FR |
|
Jean LECACHEUX |
5 |
WKL |
Jan Martin WINKEL |
1 |
NL |
|||
with Francois COLAS (COF) |
1 |
WSG |
Wolfgang STRICKLING |
1 |
DE |
TAROT (Acronym for "Télescope à Action Rapide pour les Objets Transitoires") is an automatic telescope, located at Calern Observatory, dedicated to g -rays bursts optical study; when available, it can be used for various survey programs.
2007 (October to December) Observations
Observations are visual and negative, excepted when otherwise specified. All times are in UTC.
2007/10/01 : ( 98 ) Ianthe / TYC 1778-1327-1
VF NVIKVF with I.V. LUKYANYK : CCD imaging
NVI was in the predicted path. His negative observation shows the path has been shifted but the lack of positive observation lets its position remaining unknown.
2007/10/04 : ( 737 ) Arequipa / TYC 5667-00443-1
BUL ELL HRU NBLELL : videorecording, was just at the southern border of the path
BUL was in the predicted path, close to the centreline. His negative observation shows the path has been shifted, probably toward the north. The lack of positive observation lets its position remaining unknown.
2007/10/05 : ( 903 ) Nealley / TYC 0751-00893-1
DGGDGG : videorecording, clouds at the appulse time
2007/10/07 : ( 1881 ) Shao / 2UCAC 26725182 DGG
JLXand one positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
RSG |
N 47 10 09.3 |
E 00 16 31.8 |
+114 m |
18:34:32.2 ± ? s |
18:34:32.5 ± ? s |
0.3 ± ? s |
DGG : videorecording
RSG : CCD drift scan, was just at the northern border of the path. The max predicted duration was 1.2 s
2007/10/08 : ( 18487 )
1996AU3 / 2UCAC 30945563 AEF HDGIncertitude vas large for this small asteroid (15 km)
2007/10/13 : ( 409 )
Aspasia / TYC 1349-01375-1 SPS trtand one positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
FMY |
N 47 09 39.7 |
E 05 45 37.5 |
+290 m |
01 24 10 -4.0/+0.0 s |
01 24 17 -2.0/+0.0 s |
8 ± 3 s |
SPS : CCD drift scan
FMY observation is in agreement with the prediction (max predicted duration was 10.4 s).
2007/10/13 : ( 301 )
Bavaria / TYC 0664-00942-1Only one possibly positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
JMC |
N 50 04 31 |
E 15 40 51 |
+228 m |
blink at 21:38:56.2 ± 0.1 s |
about 0.2 s |
Observation is probably not in relation with (301) Bavaria : JMC was far from the predicted track (more than ten times its width) and appulse was predicted at about 21:36 for his location.
2007/10/14 : ( 444 )
Gyptis / TYC 0694-01184-1 JGSand ten positive observations :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
DSY |
N 54 10 39.6 |
W 04 37 35.3 |
+196 m |
00:55:11.3 |
00:55:23 ± |
at least 12 s |
JLX |
N 49 10 37.0 |
W 00 23 47.9 |
+45 m |
00:56:35.60 ± 0.01 s |
00:56:52.86 ± 0.01 s |
17.26 ± 0.01 s |
AUD |
N 47 10 09.3 |
E 00 16 31.8 |
+105 m |
00:57:09.4 ± 0.5 s |
00:57:26.5 ± 0.5 s |
17.1 ± 0.1 s |
MHL |
N 47 10 09.3 |
E 00 16 31.8 |
+105 m |
00:57:09.48 ± 0.04 s |
00:57:26.80 ± 0.04 s |
17.32 ± 0.04 s |
FBI |
N 47 09 49 |
W 01 34 48 |
+14 m |
00:57:11.6 ± 0.1 s |
00:57:32.4 ± 0.1 s |
20.8 ± 0.15 s |
NNE |
N 44 41 29.6 |
W 00 59 08.6 |
+18 m |
00:57:56.0 ± 0.2 s |
00:58:15.0 ± 0.2 s |
19.0 ± 0.1 s |
MBU |
N 43 30 06.7 |
E 01 17 20.2 |
+178 m |
around 00:58 |
about 10 s |
|
CQU |
N 43 08 40.4 |
E 00 03 31.8 |
+488 m |
00:58:15.49 ± 0.02 s |
00:58:42.08± 0.02 s |
26.59 ± 0.01 s |
RVA |
N 41 47 36.65 |
E 01 37 57.13 |
+880 m |
00:58:44.47 ± 0.04 s |
00: 58:59.19 ± 0.04 s |
14.72 ± 0.02 s |
FOC |
N 41 23 22.1 |
E 01 56 10.5 |
+182 m |
00:58:55.83 ± 0.04 s |
00:59:02.25 ± 0.04 s |
6.42 ± 0.02 s |
JLX, MHL : videorecording; CQU : with VDC, CCD drift scan; AUD : CCD drift scan, double station with MHL
NNE : CCD drift scan; FOC : videorecording, first positive observation
Chords can be fitted with a 180 × 150 km elliptic profile. Positive observations show the prediction to be exact, at least concerning the position of the centreline. As the short axis was nearly parallel to asteroid motion, the path width was significantly larger than the predicted one, calculated with a 163 km mean diameter.
Note that a similar profile 190 × 155 km has been deduced from 6 chords obtained during the 1994/01/08 event involving HIP 11895 observed from Australia. (from WINOCCULT database)
2007/10/15 : ( 2523 )
Ryba / TYC 1195-01632-1 BUL OTA PAW with VIG RTHOTA, RTH, THO : videorecording; PAW : CCD imaging
WKL was on the centreline, but incertitude was large for this 23 km asteroid (one s limit was at more than five path widths from predicted centreline). Real path has been shifted but the lack of positive observation lets its position remaining unknown.
2007/10/19 : ( 1214 ) Richilde /
HIP 39344Only one positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
ABC |
N 56 03 22 |
E 09 59 14 |
+90 m |
01:53: 00 ± ? s |
01:53:02 ± ? s |
2 ± ? s |
2007/10/19 : ( 2235 )
Vittore / 2UCAC 31237677 MBU2007/10/19 : ( 8405 )
Asbolus / GSC 1198 1241 DGG JGS(8405) Asbolus is a Trans Neptunian Object (TNO).
DGG : videorecording, some clouds; JGS : videorecording, no obvious occultation longer than 2-3 seconds
2007/10/21 : ( 454 )
Mathesis / TYC 6870-00955-1 AUDAUD : CCD drift scan, was in the predicted track; his negative result shows the real path has been shifted but the lack of positive observation lets its position remaining unknown.
2007/10/22 : ( 239 ) Adrastea / TYC 5804-00013-1
BNN BOL BTG COL FIL HRU JGS KTS MAA PAW with VIG SPS THOAnd one positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
ELL |
N 53 44 25.6 |
W 02 54 25.4 |
+65 m |
20:13:04.04 ± 0.02 s 20:13:04.24 ± 0.02 s 20:13:11.36 ± 0.02 s |
20:13:04.16 ± 0.02 s 20:13:11.20 ± 0.02 s 20:13:11.52 ± 0.02 s |
0.12 s |
COL, ELL, JGS, THO : videorecording; FIL, KTS, SPS : CCD drift scan; PAW : CCD imaging
ELL : observation performed through clouds; only the second disappearance seems to be a true occultation, nothing can be said about the events at the beginning and end - 'graze' phenomena or cloud ?
ELL was just at the southern border of the predicted path but surprisingly observed an event with duration significantly large relative to the max predicted one ( 12.1 s). No conclusion can be drawn : path might have been slightly shifted (about one half of its width) toward SW, but an
elongated shape and/or a larger than supposed (42 km) size cannot be excluded.2007/10/22 : ( 4576 ) 1988CC / TYC 0684-00443-1 BUL FST HRU RTH SPS
FST, RTH : videorecording; SPS : CCD drift scan; incertitude was large for this 17 km asteroid (one s limit was at about seven path widths from predicted centreline).
2007/10/24 : ( 731 ) Sorga / TYC
0630-00383-1 trtAnd three positive observations :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
AEF |
N 50 00 14.8 |
E 05 23 50.45 |
+475 m |
03:34:18.814 ± 0.05 s |
03:34:22.114 ± 0.05 s |
3.3 ± 0.05 s |
BNN |
N 50 05 29.5 |
E 04 35 01.8 |
+276 m |
03:34:21.8 ± 0.2s |
03:34:24.8 ± 0.2 s |
3.0 ± 0.1 s |
BTG |
N 50 17 40.5 |
E 05 06 25.8 |
+321 m |
03:34:21.4 ± 0.1s |
03:34:24.7 ± 0.1 s |
3.3 ± 0.1 s |
AEF : CCD drift scan
Chords can be fitted with a 44 km circular profile, in nearly perfect agreement with the 42 km diameter used for calculation.
BNN and AEF were effectively in the predicted path, but BTG just outside it, close to its northern border. His positive observation reveals a shift of the path (by half of its width) toward N.
2007/10/27 : ( 7979 )
Pozharskij / TYC 1220-00093-1 GCV trtGCV : videorecording
2007/10/30 : ( 558 ) Carmen /
2UCAC 31798538 GCVand one positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
OJR |
N 40 38 34 |
W 03 34 50 |
+647 m |
23:56:08.7 ± 0.1s |
23:56:12.8 ± 0.1s |
4.1 ± 0.1s |
GCV : videorecording, was situated just at the northern border of the predicted path.
OJR was just at the southern border of the predicted path but surprisingly observed an event with duration close to the max predicted one ( 4.9 s). No conclusion can be drawn : path might have been slightly shifted (about one half of its width) toward south, but an
elongated shape and/or a larger than supposed (51 km) size cannot be excluded.2007/11/05 : ( 4848 ) Tutenchamon / TYC 0054-00437-1
RTHRTH : videorecording, was just outside the predicted path, close to its eastern border. Incertitude was large for this 18 km asteroid (one sigma limit at more than three path widths).
2007/11/05 : ( 3051 ) Nantong / 2UCAC 43733199 JLX with COF
JLX : videorecording
2007/11/05 : ( 672 ) Astarte / 2UCAC 44127678 SZA
and one positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
DGG |
N 48 47 13.5 |
E 15 14 08.4 |
+591m |
22:09:21.02 ± 0.15s |
22:09:25.50 ± 0.15s |
4.48 ± 0.15 s |
DGG : videorecording, was effectively in the predicted path, SZA just outside it, close to its eastern border. Note that incertitude was large for this 34 km asteroid (one s limit at more than three path widths from centreline).
2007/11/08 : ( 329 ) Svea / 2UCAC 31985164 DNZ HDG PSY RAI
RVA trt
and two positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
BDM |
N 44 59 20.4 |
E 05 35 13.8 |
+1200m |
00:34:10.7 ± 0.65 s |
00:34:18.4 ± 0.65 s |
7.72 ± 0.05s |
BLI |
N 56 21 56.7 |
E 10 19 42.5 |
+21 m |
00.32:17.36 ± 0.03s |
00:32:25.93 ± 0.03s |
8.56 ± 0.025s |
BDM, PSY : CCD drift scan; BLI, DNZ, ENK, HDG, RVA : videorecording
Observations (BDM and BLI positive and PSY and RAI negative ones) lead to a shift of the path toward S, by one of its width
BLI : Faint flash at 00:32:21.58, taking place exactly at mid-occultation. This could be due to a binary asteroid (two bodies nearly in contact) but in the present case, more likely to a Poisson effect (diffraction of the star light by the asteroid profile, visible only in the axis star-asteroid).
2007/11/09 : ( 16216 )
2000DR4 / TYC2411-01075-1 AUD BOL trtAUD : CCD drift scan, was in or at immediate vicinity of the predicted path. Incertitude was very large for this 15 km asteroid
2007/11/12 : ( 1495 )
Helsinki / 2UCAC 41313838 PCIPCI : CCD drift-scan
2007/11/12 : ( 40 ) Harmonia / TYC 6355-01269-1
RNC ROYand six positive observations :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
BDM |
N 44 59 20.4 |
E 05 35 13.8 |
+1200m |
19:05:27.5 ± 0.9 s |
19:05:30.7 ± 0.9 s |
3.2 ± 0.4 s |
COF |
N 42 56 10.9 |
E 00 08 32.5 |
+2871 m |
19:05:11.0 ± 0.1 s |
19:05:13.3 ± 0.1 s |
2.3 ± 0.15 s |
FAP |
N 45 31 33.3 |
E 05 08 41.3 |
+480m |
19:05:24.42 ± 0.02 s |
19:05:29.46 ± 0.02 s |
5.04 ± 0.03 s |
FAU |
N 45 06 22 |
E 05 40 27 |
+270 m |
19:05:50.4 ± ? |
19:05:54.0 ± ? |
3.6 ± 0.1 s |
FRP |
N 45 21 24.0 |
E 05 24 01.6 |
+428 m |
19:05:25.01 ± 0.01 s |
19:05:29.75 ± 0.01 s |
4.74 ± 0.01 s |
VVP |
N 43 47 33.1 |
E 03 43 56.2 |
+193m |
No timing |
- |
BDM, FRP, RNC : CCD drift scan; FAP : videorecording
FAU : an unexplained ~25s shift must be applied to fit with other observers.
FRP : with LVY; RNC : with F. KUGEL
Chords can be fitted with an elongated profile : 131 × 88 km, with long axis nearly perpendicular to asteroid motion (to be compared with the 108 km mean diameter used for calculation ). A certain scatter may occur, but the shape of the asteroid may be irregular as well. At least concerning the position of the centreline, the prediction was exact since FRP was nearly on the predicted centreline, and his chord is effectively the one of the profile barycentre.
Note that PSY was outside the predicted track but observed an event because of the elongated shape of (40) Harmonia.
2007/11/14 : ( 4159 ) Freeman / TYC 0057-00685-1
ELLELL : videorecording
2007/11/16 : ( 1369 )
Ostanina / 2UCAC 32648680 BOL JSZ MBU PCIPCI : CCD drift-scan
MBU and JSZ were in multiple station with a third observer : Sebastien NILLY, 5km from centreline according to last S. PRESTON’ upate. The path has been shifted but the lack of positive observation lets its position remaining unknown
2007/11/16 : ( 427 ) Galene / TYC 0260-00072-1
PCIPCI : CCD drift-scan, was on the predicted track
2007/11/16 : ( 52 )
Europa / 2UCAC 23508059 AUDand one possibly positive observation :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
JGS |
N 51 02 25.2 |
E 00 04 53.1 |
+155m |
17:49:00 ± 2s |
17:58:00 ± 1s |
9 ± 2s |
AUD : CCD drift-scan; JGS : videorecording
JGS was just at the southern border of the shadow path and surprisingly observed an event with long duration (the max predicted one was 10.2 s). Path must have been shifted (about half of its width) toward south, as an
elongated shape and/or a larger than supposed (302 km) size can be excluded. (an even smaller - 280 km- circular profile has been obtained from 12 chords observed from US during the 1983-04-26 event, involving TYC 1389-1945-1). (from WINOCCULT database)2007/11/21 : ( 2248 )
Kanda / TYC 1228-00695-1 AKF AUDAKF : videorecording; AUD : CCD drift scan
2007/11/22 : ( 1051 )
Merope / 2UCAC 29047201 CQUCQU : mistake on the target star
2007/11/22 : ( 5140 )
Kida / 2UCAC 32648665 PAW with VIGPAW : CCD imaging
2007/11/23 : ( 4250 )
Perun / TYC 1847-00969 -1 PAW THOPAW : CCD imaging, with Anthony JONCKHEERE; THO : videorecording
2007/11/23 : ( 329 ) Svea / TYC 4753-1273 -1 ENK
ENK : videorecording
2007/11/27 : ( 2878 ) Panacea / TYC 1190-00288-1
AKF JVA RTH trtAKF, RTH : videorecording; JVA : CCD drift scan
2007/11/28 : ( 126155 )
2001YJ140 / 2UCAC 41679457 DGG(126155) 2001 YJ 140 is a Trans Neptunian Object (TNO).
DGG: videorecording
2007/11/28 : ( 918 ) Itha / 2UCAC 45948049 DGG
DMC JLX PRBDGG, JLX, PRB, SMD : videorecording; DMC : with Daniel MATTER, videorecording
DMC, PRB and SMD were in or at immediate vicinity of predicted path. Incertitude was very large for this 20 km asteroid.
2007/12/05 : ( 127546 )
2002XU93 / 1B 1378-209533 = GSC 3381 846 DGG(127546) 2002 XU93 is a Trans Neptunian Object (TNO).
DGG : videorecording
2007/12/06 : ( 1535 )
Paijanne / TYC 1861-00751-1 NBL PAWPAW : CCD imaging
2007/12/06 : ( 4870 ) Shcherban’ / TYC 1916-00080-1 NBL
PAWPAW : CCD imaging
2007/12/15 : ( 441 )
Bathilde / TYC 4925-01297-1 GARGAR was in the predicted shadow path. His negative observation shows the real one has been shifted but the lack of positive observation lets its position remaining unknown.
2007/12/15 : ( 4954 )
Eric / TYC 3632-03260-1 THO2007/12/16 : ( 2345 )
Fucik / TYC 1908-00634-1 AEF ALY AUD FILAUD : CCD drift-scan;
FIL : with O. DECHAMBRE, CCD drift-scan ; JNK : no occultation longer than 0.5 s.
JLX, ALY, FIL were in or at immediate vicinity of the predicted path. Incertitude was large for this 27 km asteroid (one s limit was at about five path widths from predicted centreline).
2007/12/18
: ( 219 ) Thusnelda / HIP 38140 CRBNegative observations from Catania (N 37 33 23, E 15 04 53) and Palermo.
2007/12/19 : ( 2203 )
Van Rhijn / TYC 1868-02883-1 ELLELL : videorecording; same comments as for the previous event (17 km asteroid )
2007/12/19 : ( 5074 ) Goetzoertel / TYC
2409-00519-1 AUD RAIAUD : CCD drift-scan Incertitude was large for this 15 km asteroid asteroid (one s limit was at about ten path widths from predicted centreline)
2007/12/23 : ( 409 )
Aspasia / TYC 0757-02395-1 JLXJLX videorecorded the appulse from a site located at N 46 31 08 E 01 50 20 ); (409) Aspasia passed 0.45 ± 0.08" South (560 ± 100 km) from the faint target star, at 22:58:31 UT ± 8s. It results that the occultation path seemed in reasonable agreement with the prediction by Steve PRESTON although the closest approach happened more than one minute earlier than predicted.
2007/12/24 : ( 198 ) Ampella / TYC
1783-00860-1Two positive observations :
Abbr. |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
CNS |
N 41 37 07.1 |
W 01 02 39.1 |
+315 m |
01:08:10.74 ± 0.06 s |
01:08:22.82 ± 0.06 s |
12.08 ± 0.02 s |
MJL |
N 40 57 55.8 |
W 01 54 00.7 |
+1167 m |
01 08 27.45 ± 0.05 s |
01 08 39.29 ± 0.05 s |
11.84 ± 0.02 s |
MJL : videorecording,
CNS : videorecording, 20th positive observation.Both observers were in the predicted track, what shows the prediction was accurate.
2007/12/28 : ( 6858 ) 1990ST10 / TYC
2874-02987-1 FOCFOC : videorecording, survey began 4 minutes too late
The 34 following events have been observed by TAROT only – all negative results :
2007/10/01 1127 Mimi TYC 5296-00610-1
2007/10/02 4580 Child TYC 5746-01963-1
2007/10/03 51103 2000 HX12 TYC 1219-01837-1
2007/10/05 40429 1999 RL27 TYC 5263-00922-1
2007/10/06 32602 2001 QE185 2UCAC 40806389
2007/10/18 1284 Latvia TYC 2453-00033-1
2007/11/01 52550 1996 YB3 TYC 2424-00570-1
2007/11/01 4260 Yanai TYC 1324-02211-1
2007/11/02 1594 Danjon 2UCAC 33508821
2007/11/03 11505 1990 DW2 TYC 1925-00885-1
2007/11/04 1008 La Paz TYC 4949-00976-1
2007/11/07 46992 1998 TZ17 TYC 2337-00509-1
2007/11/07 8735 Yoshiosakai 2UCAC 39798078
2007/11/08 512 Taurinensis 2UCAC 27221240
2007/11/14 757 Portlandia TYC 2372-01806-1
2007/11/17 29819 1999 CD128 TYC 6408-00535-1
2007/12/01 8197 Mizunohiroshi TYC 1311-03147-1
2007/12/01 444 Gyptis TYC 0666-00574-1
2007/12/02 1156 Kira TYC 1864-01496-1
2007/12/03 608 Adolfine TYC 1389-01264-1
2007/12/04 1417 Walinskia 2UCAC 37718019
2007/12/08 1751 Herget TYC 1275-00906-1
2007/12/11 29172 1990 QL4 TYC 2449-00678-1
2007/12/12 1522 Kokkola TYC 0022-01118-1
2007/12/12 5888 1978 VU7 TYC 1912-00904-1
2007/12/12 38613 2000 AV110 TYC 0773-00261-1
2007/12/13 3689 Yeates TYC 0014-00055-1
2007/12/14 6503 1994 CP TYC 1321-00084-1
2007/12/14 1138 Attica TYC 1764-02150-1
2007/12/16 1497 Tampere TYC 0016-01139-1
2007/12/18 3667 Anne-Marie TYC 1975-00550-1
2007/12/19 8573 Ivanka TYC 2499-01562-1
2007/12/19 5885 Apeldoorn TYC 0694-01043-1
2007/12/20 608 Adolfine TYC 1388-01528-1
Reports are diffused on Internet by "
PLANOCCULT". To subscribe to this free service, send an E-Mail to listserv@Aula.com with the following text : subscribe planoccult Your Name, Your Country -and to unsubscribe, send an e-Mail to listserv@Aula.com, with text : unsubscribe planoccult.Received reports and results are summarized on
http://www.euraster.net , a web page maintained by Eric FRAPPA from Saint-Etienne Observatory.Predictions with finder charts and up-dated shadow path are regrouped on the EAON web-site: http://astrosurf.com/eaon, maintained by Jean SCHWAENEN.
It is necessary to send a report even if there has been no occultation from your place (negative observation). These negative observations can sometimes be of as great interest as positive ones : they can be decisive to determine the shape ("shepherd observations"), refine the orbit of the asteroid or discover un unknown satellite !
Please DON’T FORGET to use the IAU format YYMMDD for the date of your reports. Clear skies for all.
G. REGHEERE gillesregheere@yahoo.fr
96 rue de Mercantour
78310 Maurepas - FRANCE