|
|
EAON - INFO
N° 51
2005,
July to October |
191
observations have been performed between 2005, July and October (39 positive or
possibly positive) about 75 events ( 17 positive
or possibly positive) by 95 observers, from the 19 following
countries (and numbers of observers) :
AT = Austria ( 1 ), BE = Belgium ( 6
), BY = Belarus ( 3 ), CH
= Switzerland ( 1 ), CZ = Czech Republic ( 7 ), DE
= Germany ( 10 ), ES = Spain ( 15 ),
FR = France ( 9 ),
GR = Greece ( 1 ), HU = Hungary ( 1 ), IT =
Italy ( 4 ), NL = The Netherlands ( 3 ), PL
= Poland ( 6 ), PT = Portugal ( 3 ),
RO = Romania ( 1 ), RU = Russia
( 6 ),
SK = Slovakia ( 2 ), UA = Ukraine ( 4 ),
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.
|
ACH |
Apostolos CHRISTOU |
1 |
|
|
KLA |
Andrey KULSHA |
1 |
BY |
|
AEF |
Fernand VAN DEN ABBEEL |
1 |
BE |
|
KOS |
Stanislav
KOROTKIY |
1 |
RU |
|
AKF |
Andre KNOFEL |
2 |
DE |
|
KUS |
Peter KUSNIRAK |
1 |
PL |
|
ala |
Asociacion Leonesa de Astronomía |
1 |
ES |
|
KVF |
Fedir
KRAVTSOV |
1 |
UA |
|
AYI |
Anthony AYIOMAMITIS |
1 |
GR |
|
with Igor LUKYANYK |
1 |
UA |
|
|
AZO |
Tibor AZTALOS |
1 |
HU |
|
LZJ |
Joan LOPEZ RODRIGUEZ |
1 |
ES |
|
BCL |
Philippe BERNASCOLLE |
4 |
FR |
|
MBU |
Michel BOUTET |
3 |
FR |
|
BEI |
Wolfgang BEISKER |
1 |
DE |
|
MFV |
Peter MITROFANOV |
1 |
RU |
|
BLO |
Joan
M. BULLON |
1 |
ES |
|
MJL |
Jose Luis MARCO LARRIBA |
1 |
ES |
|
BNN |
Roland BONINSEGNA |
1 |
BE |
|
MKM |
Pavel MAKSYM |
1 |
PL |
|
BUL |
Henk BULDER |
2 |
NL |
|
MON |
Arturo RAMIREZ
MONTESINOS |
1 |
ES |
|
BVV |
Vladimir BUSLOV |
1 |
RU |
|
NBL |
Wim NOBEL |
1 |
ES |
|
BZY |
Wojciech
BURZYNSKI
with T. KOSINSKI |
1 |
PL |
|
NBU |
Nicolay BUROMSKY |
1 |
UA |
|
|
NVI |
Vitali NEVSKI |
2 |
BY |
||||
|
CBC |
Carlo BLANCO |
1 |
IT |
|
NVV |
Vladimir P. NEBOTOV |
2 |
UA |
|
CNS |
Oscar CANALES with Alberto BERDEJO (BDJ) |
1 |
ES |
|
OJR |
Jose RIPERO OSORIO |
1 |
ES |
|
|
with |
1 |
ES |
|||||
|
CQU |
Jean CAQUEL with
Gerard VAUDESCAL (VDC) |
1 |
FR |
|
OKE |
Oliver KLOES with Stefan MESSER
(MSS) |
2 |
DE |
|
|
1 |
DE |
||||||
|
CTJ |
Jacinto CASTANHO |
1 |
PT |
|
OTA |
Otta SANDOR |
2 |
CZ |
|
DEN |
Martin DENTEL |
1 |
DE |
|
PAW |
Thierry PAUWELS with Pierre VINGERHOETS (VIG) |
1 |
BE |
|
DGE |
Patrick DEGRELLE |
1 |
FR |
|
||||
|
DGG |
Gerhard DANGL |
9 |
AT |
|
PCI |
Paolo CORELLI |
2 |
IT |
|
DKO |
Denis DENISSENKO |
|
RU |
|
PLS |
Serguei PLETNYOV |
1 |
RU |
|
with Eugene M. TRUNKOWSKY |
1 |
|
|
PRB |
Vaclav PRIBAN
|
1 |
CZ |
|
|
with Sergey PAVLOV |
1 |
|
|
RAI |
Manfred RAIN |
2 |
DE |
|
|
DNZ |
Helmut DENZAU |
3 |
DE |
|
RDI |
Sylvain RONDI with B. DAVID and A. JAUREQUIBERRY |
1 |
FR |
|
EKM |
Maxim ERESHKO |
1 |
RU |
|
||||
|
ELL |
Andrew ELLIOTT |
1 |
|
|
RHM |
Robin HASLAM |
1 |
|
|
FAR |
Otto FARAGO |
1 |
ES |
|
RTH |
Wolfgang ROTHE |
7 |
DE |
|
FIM |
Marcin FILIPEK |
2 |
PL |
|
SIC |
Costantino
SIGISMONDI |
1 |
IT |
|
FOC |
Mario FERNANDEZ OCANA |
5 |
ES |
|
SKC |
Boris SKORITCHENKO |
3 |
UA |
|
GAA |
Adrian GALAD |
1 |
SK |
|
SLO |
Wieslaw SLOTWINSKI |
1 |
PL |
|
GAR |
Faustino GARCIA |
2 |
ES |
|
SMD |
Libor SMID |
2 |
CZ |
|
GCV |
Rui GONCALVES |
1 |
PT |
|
SPL |
Jerzy SPEIL |
2 |
PL |
|
GKB |
Bernd GAEHRKEN |
1 |
DE |
|
SPS |
Stefano SPOSETTI |
2 |
CH |
|
GQR |
Tomas L. GOMEZ |
1 |
ES |
|
SRH |
Hotea M. SORIN |
1 |
RO |
|
GRS |
Christian GROS |
6 |
FR |
|
SUP |
Serguei SHURPAKOV |
2 |
BY |
|
HAL |
Karel HALIR |
1 |
CZ |
|
TFA |
Astrid TEUFER-FARAGO |
1 |
ES |
|
HGT |
Roy HENGST |
2 |
DE |
|
THO |
Bertrand THOORIS |
2 |
BE |
|
HRU |
Harrie G. J. RUTTEN |
3 |
NL |
|
TKO |
Alexey TKACHENKO |
1 |
BY |
|
IGI |
Manuel
IGLESIAS with
M. PEREZ and J. SANZ |
1 |
ES |
|
trt |
TAROT (see below) |
24 |
FR |
|
|
UBJ |
Jan URBAN |
1 |
CZ |
||||
|
IVY |
Igor VINYAMINOV |
7 |
RU |
|
UTF |
Ugo TAGLIAFERRI |
1 |
IT |
|
JGS |
Malcolm JENNINGS |
3 |
UK |
|
VIJ |
Josef VILAGI |
1 |
SK |
|
JLX |
Jean
LECACHEUX |
2 |
FR |
|
VNB |
Fernand VAN DEN BULCKE |
1 |
BE |
|
JNK |
Tomas JANIK |
14 |
CZ |
|
WGI |
Artur WARGIN |
1 |
PL |
|
1 |
FR |
|
WKL |
Jan Maarten
WINKEL |
1 |
NL |
||
|
JSZ |
Jacques SANCHEZ |
3 |
FR |
|
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.
2005
(July to October) Observations
Observations
are usually visual and negative, excepted when otherwise specified. All times
are in UTC.
2005.07.03 : (15527) 1999 YY 2 / TYC
0360-01194-1 BCL DGE
BCL was
in the M. Kretlow predicted path.
2005.07.10 : (1361) Leuschneria / 2UCAC 33472533
IVY
2005.07.12 : (1015) Christa / 2UCAC
33402201
GAR
JSZ
MBU RDI
and three positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
CQU |
N 43 08 40.4 |
E 00 03 31.8 |
+ |
21:41:23.75
± ? |
21:41:26.5
± ? |
2.8 ± ? |
|
JLX |
N 43 43 05.0 |
E 00 26 58.2 |
+140 m |
21:41:17.3 ±0.2 s |
21:41:18.4 ±0.2 s |
1.1 s (+0.2s,-0.5s) |
|
LZJ |
N 42 15 6.8 |
E 02 59 52.9 |
+ |
21:38:52.2 ± ? |
21:38:58.3 ± ? |
6.1 s |
RDI : CCD
drift scan ; MBU and JSZ in double station; CQU : personal equation not
taken into account
All the observers but GAR were in the predicted
path, nevertheless only three of them observed an event, sometimes sooner than
the predicted time. Bad conditions of observation (the
star was faint and low above horizon, at 30° from Sun) can explain these
discrepancies; no conclusions can be drawn.
2005.07.12 : (4375) Kiyomori / TYC 6234-00213-1
OKE
OKE : videorecording
2005.07.17 : (3475) Fichte / TYC
5161-01277-1
BCL
trt
BCL and
trt were in or very close to the Euraster
predicted path.
2005.07.17 : (8126) 1966 BL /
HIP 106351 - TYC 5794-01023-1
only one positive
observation :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
RAI |
N 51 19 07 |
E 06 15 13 |
+ |
23:51:55.2 ± 0.3 s |
23:51:55.6 ± 0.3 s |
0.4 ± ? |
The
maximum predicted duration was 0.8 s in relation with the asteroid diameter (
2005.07.18 : (957) Camelia / TYC 5147-00356-1
JNK
2005.07.28 : (2397) Lappajarvi / 2UCAC 26766082 DGG
MKM
2005.07.29 : (712) Boliviana / TYC 1783-00783-1
DGG
PCI
PCI : CCD drift scan
2005.08.02 : (930)
JGS : videorecording
2005.08.04 : (2513) Baetsle / TYC
6300-00796-1
HRU
OKE
PCI
RTH trt
OKE, RTH : videorecording; PCI : CCD
drift scan
2005.08.06 : (108) Hecuba / TYC
1798-00204-1
IVY
IVY was
in the S. Preston up-dated path, close to its
eastern border
2005.08.07 : (16911) 1998 EL 6 /
2UCAC 29131700
JNK
2005.08.07 : (134) Sophrosyne/ TYC 2392-00933-1
IVY
and one positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
BVV |
N 54 12 36.5 |
E 40 28 10 |
+ |
22:33:42.83 ± 0.1 s |
22:33:45.45 ± 0.1 s |
2.6 ±0.2 s |
BVV was
effectively in the S. Preston up-dated path and the measured duration is in
agreement with what can be expected from its
position and duration maximum value ( 3.5 s ). Nevertheless, IVY negative
observation (who was close to the predicted central line) leads to a shift of
the shadow path toward West, by a half of its width.
2005.08.09 : (22059) 2000 AD 75 /
TYC 5703-02058-1 DGG
GRS JNK
2000 AD
75 is a Trojan asteroid
DGG : many interruptions due to fast moving clouds ; JNK :
no occultation longer than 0.5 s
2005.08.10 : (4840) Otaynang / 2UCAC
34379604 GRS
2005.08.11 : (2851)
2005.08.12 : (5138) Gyoda / HIP 100533
FOC trt
2005.08.17 : (4405) Otava / 2UCAC
34396053
GRS
trt
2005.08.19 : (780)
2005.08.22 : (3120) Dangrania / TYC 5147-02572-1
ELL
ELL : videorecording
2005.08.23 : (323) Brucia / HIP 26211
NVV trt
2005.08.26 : (19966) 1987 SL 3 / HIP
25984 ( c , 25 Aur)
FOC
JGS JLX
JGS : videorecording
The
maximum predicted duration was 0.4 s in relation with the asteroid diameter (
2005.08.31 : (18114) 2000 NN 19 /
TYC 2309-00672-1
JNK
trt
JNK : no occultation longer than 0.2s
2005.09.01 : (206) Hersilia / 2UCAC 23687129
DGG
and one positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
RTH |
N 52 28 10.0 |
E 13 28 57.6 |
+ |
19:36:30.0 ± 0.35 s |
19:36:42.2 ± 0.35 s |
12.2 ±0.7 s |
RTH : videorecording
RTH
observed an event with duration significantly longer than the maximum
predicted one ( about 7.5 s, corresponding to a
2005.09.02 : (78) Diana / HIP
115624
trt UTF
2005.09.06 : (3048)
2005.09.06 : (680) Genoveva / 2UCAC 27221047 - TYC 5272-00622-1
BUL JNK RTH
and one positive from
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
G. NASON |
N 44 49 44.3 |
W 77 06 30.6 |
+ |
02:36:00.6 ± ? |
02:36:04.2 ± ? |
3.6 ± ? |
RTH : videorecording
The
positive observation shows that the S. Preston prediction was nearly exact. BUL
must have missed the asteroid southern limb by a
few kilometres.
2005.09.07 : (14958) 1996 JK 1 / HIP
105933
IVY
IVY : CCD imaging
2005.09.10 : (904) Rockefellia / TYC 5161-01566-1
DKO
EKM NVI
DKO : videorecording, in double
station with visual observer S. Pavlov; EKM : CCD drift scan
2005.09.12 : (8581) Johnen / HIP 2735
IVY
IVY : CCD imaging
2005.09.12 : (598) Octavia / TYC
1338-01739-1
FOC
trt
2005.09.12 : (3751) Kiang / TYC
6269-0279-1
RHM
2005.09.15 : (90) Antiope / 2 UCAC
21638930
CBC
(90) Antiope is the sole big asteroid in the
Main Belt owning a big satellite, and besides is the asteroidal
couple having the most accurately known elements. Both components have 85km
diameter; at the instant of occultation, the projected
lateral separation of the centrelines was
CBC was situated 1.1 (resp.
2005.09.23 : (1274) Delportia / TYC
1783-00747-1 OTA
OTA: no
occultation longer than 0.6 s
2005.09.23 : (2333) Porthan / TYC 6401-00598-1
DGG
FIM JNK RTH
JNK was in the J. Schwaenen predicted track
but interrupted the observation from
23:24:57 to 23:25:05 , close to the predicted appulse
time – 23:24:50.
2005.09.24 : (53233) 1999 CO 117 /
2UCAC 29202372
JNK
2005.09.25 : (773) Irmintraud / TYC 2930-02721-1
AKF GKB
HAL JNK
JSZ
MBU MJL
PRB RTH
SKC
SPL SPS
and one positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
DGG |
N 48 47 13.4 |
E 15 14 08.4 |
+ |
01:54:13.9 ± 0.1 s |
01:54:16.4 ± 0.1 s |
2.5 ± 0.2 s |
SPS : CCD drift scan; AKF, PRB, RTH : videorecording;
MBU and JSZ in double station
AKF and
RTH negative observations (they were in the predicted path) and DGG positive
one, show the real path has been shifted toward East by about three times its
width. Such a similar wide shift has already been observed during the
2004.07.21 occultation.
2005.09.27 : (573) Recha / 2UCAC 43227495
two positive observations :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
NVI |
N 55 03 29.0 |
E 30 19 29.8 |
+ |
02:25:11.3 ± 0.1 s |
02:25:19.2 ± 0.1 s |
7.9 ± 0.2 s |
|
SUP |
N 54 27 31.0 |
E 30 18 58.0 |
+ |
02:25:02.95 ± 0.1 s |
02:25:07.0 ± 0.1 s |
4.05 ± 0.2 s |
NVI was
on the predicted centreline and effectively observed a duration event of 7.9 s,
close to the maximum predicted value (7.4 s,
calculated for a diameter of
2005.09.27 : (38) Leda / TYC
1401-00677-1
OJR
2005.09.27 : (565) Marbachia / TYC
5182-00548-1 ACH
ala JGS
M. Kretlow prediction; ACH : no
occultation longer than 1 s; ala, JGS : videorecording
2005.09.29 : (655) Briseis / TYC 0028-00818-1 FOC KLA PLS SUP TKO
KLA (in
double station with TKO) and SUP were very near or in the
2005.09.29 : (23135) 2000 AN 146 /
TYC
5710-01658-1
only one positive observation
:
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
trt |
N 43 45 08 |
E 06 55 26 |
+ |
21:43:46.7 ±0.2s |
21:43:50.9 ±0.2s |
4.2 ± 0.4 s |
The positive observation performed by the
automatic telescope (controlled by A. Klotz and E. Frappa) shows that the
M. Kretlow prediction was nearly exact. The measured
duration is close to the maximum predicted one (4.9
s).
2005.10.01 : (173) Ino / 2UCAC 34620114
only one perhaps positive
observation :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
IVY |
N 5142 55.0 |
E 39 13 54.8 |
+ |
02:15:30.7 ± 0.2 s 02:16:13.75 ± 0.2 s 02:16:23.55 ± 0.2 s |
02:15:31.5 ± 0.2 s 02:16:15.55 ± 0.2 s 02:16:27.45 ± 0.2 s |
0.8 ± 0.2 s 1.8 ± 0.2 s 3.9 ± 0.2 s |
Dubious
events; IVY was nearly on the
2005.10.03 : (3641)
GAR was just at the eastern edge of
the J. Schwaenen predicted path. M.
Kretlow prediction was
situated three path widths more easterly. Uncertainty was large for
this small asteroid (
2005.10.04 : (210) Isabella / TYC
1850-01255-1
IVY
IVY was
just at the southern edge of the M. Kretlow predicted
path.
2005.10.05 : (2928) Epstein / HIP
24879
AZO
JNK
KVF NBU SRH trt
JNK : videorecording; KVF, NBU :
CCD drift scan
2005.10.05 : (397)
and two positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
GAA |
N 48 22 23.5 |
E 17 16 26.5 |
+ |
21:22:40.6 ± 1 s |
21:22:48.5 ± 1 s |
7.9 ±0.2 s |
|
SPL |
N 50 50 33.1 |
E 16 17 36.9 |
+ |
21:21:56.0 ±0.3 s |
21:21:59.2 ±0.2 s |
3.2 ±0.5 s |
DNZ : videorecording;
GAA : CCD drift scan
OTA : 1.5 s – long
interruption at 21:23:31
The
positive observations show that the real path
has been shifted by about half path width toward SE : GAA was
well inside the J. Manek updated predicted
path, close to its edge, but he registered a chord with duration close to max
predicted value ( 8.4 s ). The reduction shows the chords are not consistent
with a circular body.
2005.10.09 : (932) Hooveria / TYC
2451-02089-1 GRS
MFV trt
2005.10.10 : (5) Astraea / TYC
6336-01723-1
BNN
2005.10.11 : (1115) Sabauda / TYC
1961-00188-1 GRS
NVV
M. Kretlow prediction
2005.10.11 : (712) Boliviana / TYC 1831-01958-1
DNZ JNK
THO WGI
and two positive or perhaps positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
BZY |
N 53 21 37.9 |
E 23 12 04.2 |
+ |
small
0.7-1.0 mag. drop at 22:51:47.9 ± 0.20 s |
2 to 3 s |
|
|
KVF |
N 50 17 50 |
E 30 31 50 |
+ |
22:52:03.7 ±? |
22:52:22.0 ±? |
18.3 ± 0.5 s |
BZY : with T. Kosinski; DNZ : videorecording;
KVF : CCD drift scan, with I. Lukyanyk.
WGI : No occultation longer than 0.5 s. Reduction
shows that the two positive observations are incompatible between them since
both stations were in the predicted path, nearly on the same chord but the
measured durations are very different.
2005.10.12 : (372) Palma / TYC
0562-01044-1
BEI DGG
HGT HRU RTH
and five positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
AEF |
N 50 00 15.0 |
E 05 23 50.6 |
+475 m |
missed |
21:38:14.06 ± ? |
> 12.17 s |
|
KUS |
N 49 54 52 |
E 14 46 47 |
+528 m |
missed |
21:36:57.5 ± ? |
> 16 s |
|
OKE |
N 50 08 17.4 |
E 08 21 50.4 |
+256 m |
21:37:27.8 ± 0.5 s |
21:37:52.5 ± 2.5 s |
24.7 ± 3 s |
|
PAW |
N 50 47 55 |
E 04 21 29 |
+105 m |
21:38:02.48 ± 0.02 s |
21:38:24.44 ± 0.02 s |
21.95 ± 0.05 s |
|
SMD |
N 4943 48.2 |
E 13 23 34.5 |
+340 m |
21:36:46.08 ± 0.08 s |
21:37:07.48 ± 0.08 s |
21.4 ± 0.1 s |
BEI, OKE, RTH, SMD : videorecording;
AEF, KUS, PAW : CCD drift scan
HRU : uncertain
observation; J. Manek performed an
additional positive observation from
DGG was the southern “shepherd” observer and probably missed the
occultation by less than a kilometre. Chords can be fitted with a 240 ×
A similar profile (220 ×
2005.10.13 : (100) Hekate / TYC 0649-00346-1 DGG DKO (with E.
M. TRUNKOVSKY) UBJ
and two positive or
possibly positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
JNK |
N 50 44 00.2 |
E 14 00 09.1 |
+462 m |
00:30:26.9 ±0.4 s |
00:30:29.7 ±0.4 s |
2.8 ± 0.1s |
|
KOS |
N 55 14 52 |
E 37 52 59 |
+183 m |
00:29:28.15 ±0.3 s |
00:29:33.4 ±0.3 s |
5.25 ± 0.1 s |
|
VIJ |
N 48 22 23.5 |
E 17 16 26.5 |
+531 m |
00:31:41.24 ±1 s |
00:31:45.6 ±1 s |
4.34 ± 0.20 s |
DKO is the northern shepherd observer. These observations show the
prediction to be exact.
Reduction shows that the JNK positive
observation, if real, is not linked to the two others (JNK was situated
nearly
2005.10.19 : (166) Rhodope / HIP
49669 (Regulus, a Leo)
CTJ
MON
and twelve positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
AYI |
N 38 17 59 |
E 23 44 33 |
+85 m |
04:24:43.45
|
04:24:45.40
|
1.9 to 2.0 s |
|
SIC |
N 38 40 41 |
E 16 06 10 |
+503 m |
|
|
1.78 s |
|
BLO |
N 38 33 17 |
W 01 39 30 |
+559 m |
04:23:56.1 ±0.1 s |
04:23:58.0 ±0.1 s |
1.9 s |
|
NBL |
N 38 32 13.7 |
W 01 51 15.9 |
+668 m |
04:23:55.88 ±? |
04:23:57.82 ±? |
1.94 s |
|
GQR |
N 38 38 48.3 |
W 03 24 30.8 |
+732 m |
04:23:55.4 ±? |
04: 23:56.2 ± 0.1s |
0.8 s |
|
OJR |
N 38 31 00 |
W 03 29 10 |
+830 m |
04:23:54.7 ±? |
|
2 s |
|
TFA |
N 38 30 29 |
W 03 29 43 |
+840 m |
04:23:53.94 |
04:23:56.06 ±? |
2.04 |
|
FAR |
N 38 29 46.95 |
W 03 30 12.1 |
+775 m |
04:23:53.90 ±0.02 s |
04:23:55.92 ±0.02 s |
2.02 ±0.02 s |
|
IGI |
N 38 37 06.05 |
W 03 40 45.7 |
+650 m |
04:23:54 ±? |
? |
? |
|
D. DUNHAM |
N 38 03 20.6 |
W 06 14 24.3 |
+605 m |
04:23:50.28 ±? |
04:23:51.22 ±? |
0.94 s |
|
GCV |
N 37 55 22 |
W 08 14 30 |
+100 m |
04:23:46.84 |
04:23:47.80 |
0.84 |
|
D. NYE |
N 38 10 04.9 |
W 08 29 24.35 |
+146 m |
04:23:46 ±3 s |
2.03 ±0.03 s |
|
AYI : CCD imaging; BLO, FAR,
GCV, MON, SIC, TFA : videorecording
IGI : with Maribel Perez
and Jorge Sanz; OJR : with
Regulus, studied with the
CHARA optical interferometer, has been shown as an ellipsoidal body (0.012 ×
axis perpendicular to the
view one (Astrophysical J., July 2005, pp. 439-451).
Comparison of resp. star and asteroid
apparent diameters (resp. about 0.014 and
The D. Dunham’s video
observation has been performed about
The other reports
cannot be taken into account. Any observer should try to recover the gradual ingress
and egress, and try to find the 0.75 mag drop levels,
of which the timing gives the exact edges of the (166) Rhodope
limb.
2005.10.20 : (1235) Schorria / HIP
16995 FIM
HRU RAI
SLO THO
VNB
WKL WSG
and one positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
JNK |
N 50 44 00.2 |
E 14 00 09.1 |
+462 m |
20:37:05.12 ±0.2s |
around 0.2 s |
|
THO, WSG : videorecording
Several
observers were effectively very close to the S. Preston’s predicted path. The
smallness of the asteroid (
2005.10.24 : (397)
2005.10.24 : (60) Echo / 2UCAC
38402983
SKC
2005.10.27 : (949) Hel / TYC
6877-00010-2 BCL
GRS
JSZ MBU
and one positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
CNS |
N 41 39 11.25 |
W 00 54 54.25 |
+240 m |
18:56:32.27 ±0.08 s |
18:56:34.01 ±0.08 s |
1.74 s |
CNS: videorecording; JSZ and MBU
in double station
TYC
6877-00010-2 is a double star (
2005.10.29 : (86028) 1999 LR 19 /
TYC 1707-00522-1 JNK
M. Kretlow and A.
Plekhanov prediction; no occultation longer than 0.1s
2005.10.29 : (546) Herodias / 2UCAC
44969446 AKF
DEN DGG
HGT JNK
RTH SMD SPS
and one positive :
|
Abbr |
Latitude |
Longitude |
Height |
Disappearance UT |
Reappearance UT |
Duration |
|
DNZ |
N 54 20 34 |
E 10 33 06 |
+40 m |
03 48 04.1 ±0.08 s |
03 48 10.3 ±0.08 s |
6.2 s |
AKF,
DEN, DNZ, SMD, RTH : videorecording;
SPS : CCD imaging
JNK : no occultation longer than 0.5s
The DNZ
positive observation can be explained by a path shifted by about one of its
width, toward SW. The occurrence of a secondary
event with no significant shift is unlikely (according to the long observed
duration, relative to the max predicted one : 8.5 s)
but cannot be ruled out, as there was no station in the predicted path.
2005.10.29 : (7135) 1993 VO / TYC
1287-01276-1
JNK
M. Kretlow and A. Plekhanov predictions; JNK : no occultation longer than 0.1s
The 12
following events have been observed by TAROT only – all negative results :
2005/07/02 : (6972)
Helvetius / TYC
5718-00463-1
2005/07/07 : (3455) Kristensen / TYC
5791-00541-1
2005/07/29 : (4451)
Grieve / 2UCAC
41559625
2005/08/03 : (29311) 1994 BQ3 / TYC 5767-00766-1
2005/08/03 : (6249)
Jennifer / TYC
3229-00107-1
2005/08/06 : (2612) Kathryn / 2UCAC 27180993
2005/08/09 : (3189)
2005/09/03 : (270) Anahita / TYC
1358-01237-1
2005/09/09 : (2428) Kamenyar / TYC 5258-00596-1
2005/10/09 :
(1231) Auricula / TYC
1171-00709-1
2005/10/13 : (16018) 1999 CJ67 / TYC 1730-00215-1
2005/10/28 :
(10711)
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Received
reports and results are summarized on www.euraster.net, a web page maintained
by E. FRAPPA from
Saint-Etienne Observatory. Predictions with finder charts and up-dated shadow
path are regrouped (since September 2004) 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 position of the shadow path (see the IVY case for the 2005.08.07 :
(134) Sophrosyne/ TYC 2392-00933-1 event in
this info), determine the shape (“shepherd observations”), refine the orbit of
the
asteroid or discover un unknown
satellite !
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