My asteroids web page

On the top picture, you can see these asteroids: Gaspra, Dactyl, Ida, Itokawa, Annefranck, Eros, Vesta and Mathilde (not at the same scale)

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My asteroids measurements from IAU B00 (at home):

2016
2016-08-25, 2016-08-30,

2014
2014-02-21, 2014-03-01, 2014-03-07, 2014-03-08, 2014-03-12, 2014-03-16, 2014-08-29,

2011
2011-07-30,

2007

2007-02-15, 2007-02-18, 2007-03-12, 2007-03-14 , 2007-04-04 & 2007-04-07, 2007-04-08, 2007-04-09, 2007-04-11, 2007-04-16&18, 2007-04-20, 2007-09-04, 2007-10-31,

2006
2006-06-07 & 2006-06-08, 2006-06-12, 2006-07-01, 2006-07-162006-07-17 & 2006-08-05, 2006-08-03, 2006-08-31, 2006-09-18 (from IAU 184), 2006-09-19/20/21 (from IAU 184), 2006-11-15,

 

My asteroids measurements from IAU B44 (in holidays at Eygalaye Observatory):

2008
2008-08-01, 2008-08-02, 2008-08-03, 2008-08-04, 2008-08-05, 2008-08-06,

2007
2007-08-12&13 (known asteroids), 2007-08-12&13 (unknown asteroids),

  

Photometric measurements of asteroids:

2016
2016-08-25, 2016-08-30,

Statistics on residuals from observations of minor planets, for my observatories:

COD     Year          Tot      <1"      <2"      <3"      <4"     >=4"       R.A.           Decl.
B00     2014          527      345      125       51        4        0  -0.38 +/- 0.89  +0.25 +/- 0.58
B00 2012 12 12 0 0 0 0 +0.10 +/- 0.08 +0.51 +/- 0.05
B00 2011 9 8 1 0 0 0 +0.23 +/- 0.29 +0.53 +/- 0.14
B00 2007 395 276 103 14 2 0 +0.33 +/- 0.70 +0.33 +/- 0.58
B00 2006 125 82 43 0 0 0 +0.42 +/- 0.63 +0.26 +/- 0.41

B44 2008 612 489 96 18 9 0 +0.03 +/- 0.70 +0.04 +/- 0.60
B44 2007 235 150 56 16 13 0 +0.10 +/- 1.12 +0.41 +/- 0.72

 

My asteroids discoveries:


NumbersNames Prov. Names Discovery Date ObservatoriesTelescope Sizes Naming citations
2007 PR43 2007-08-12 B440.43m
200 031 2007 PQ 43 2007-08-12 B440.43m
281 272 Arnaudleroy2007 RC12 2007-09-10 5860.6m MPC 79108 of 2012 April 6:
(281272) Arnaudleroy = 2007 RC12
     Discovered 2007 Sept. 10 at the Pic du Midi Observatory.
Arnaud Leroy (b. 1974) is a French amateur astronomer at the Pic du Midi observatory, who directs the 0.6-m telescope at which this minor planet was discovered. He mainly works on minor planets and meteor streams. He is also the leader of the Uranoscope observatory, near Paris.
210 245 Castets2007 RG216 2007-09-13 5860.6m MPC 79108 of 2012 April 6:
(210245) Castets = 2007 RG216
     Discovered 2007 Sept. 13 at the Pic du Midi Observatory.
Martine Castets (b. 1949) is a former school teacher and French amateur astronomer. For many years she has been responsible for the AT60 association, which allows amateur astronomers at Pic du Midi to use the 0.6-m telescope, with which this minor planet was discovered.
200 053 2008 PK6 2008-08-02 B440.43m
263 984 Astier2008 PP21 2008-08-04 B440.43m MPC 100317 of 2016 May 21:
(236984) Astier = 2008 PP21
     Discovered 2008 Aug. 4 by P. Sogorb at Eygalayes.
Alexandre Astier (b. 1974) is a French humorist, actor, scriptwriter and movie director. Known for the television series “Kaamelott”, he’s an artist who wanted to be an astronomer. Alexandre uses his skills against obscurantism and to promote astronomy, as in his one-man show “l’Exoconference”.
341 958 Chretien2008 PW21 2008-08-03 B440.43m MPC 100317 of 2016 May 21:
(341958) Chrétien = 2008 PW21
     Discovered 2008 Aug. 3 by P. Sogorb at Eygalayes.
Henri Chrétien (1879–1956) was a French astronomer and optician. An opticalcalculation expert, he was the co-inventor of Ritchey-Chrétien telescope. This kind of telescope is now used throughout the world and even in space.
410 619Fabry2008 PL62008-08-02B440.43mMPC 100610 fo 2016 June 5
(410619) Fabry = 2008 PL6
     Discovered 2008 Aug. 2 by P. Sogorb at Eygalayes.
Charles Fabry (1867–1945) was a French physicist and optician. He worked on
interferometry, spectrometry and photometry. He explained interference fringes and
was co-inventor of Fabry-P´erot interferometer.
428 6962008 PM62008-08-02B440.43m


 

How I do asteroides measurements?:

For such measurements, I use mostly a  400mm f/3.5 newtonian telescope.  My mount is mototrised by  MCMT . For driving my CCD camera, my mount and for astrometric and photometric measurement, I use PRiSM software. After a good night of observations, I send my Measurement to the MPC (Minor Planet Center), a Part of the IAU (Internationale Astronomical Union).

You can notice that  MCMT and PRiSM are developped by french amateurs astronomeurs. Thanks a lot for them to give everybody such powerfull tools.

 

 

A friend's asteroid: (21380)Devanssay

Jean-Benoit De Vanssay is a good friend of mine. In 2005 December, Alain Maury gave Jean-Benoit's mane to an asteroid founded in 1998 at the "Observatoire de Cote d'Azur". So the 1998DB20 became (21380)Devanssay

Naming citation, from MPC 20051215:

(21380) Devanssay = 1998 DB20
     Jean Benoit De Vanssay (b. 1970) is a French amateur astronomer and optician. As an amateur he has made several observing missions in the large amateur facilities in France (Pic du Midi, St. Véran), and as a professional has worked on optics for some of the largest telescopes in the world.


Click here to get ephemerides for (21380)Devanssay

(21380)devanssay.jpg (34939 octets)

Orbial elements:
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5                 MPC
M   9.19391               (2000.0)             P                Q
n   0.28785250     Peri.  174.73446      +0.67967120     +0.72945533              T = 2453968.56035 JDT
a   2.2717265      Node   138.05154      -0.67712814     +0.66435411              q =      1.8071190
e   0.2045173      Incl.    6.62184      -0.28203644     +0.16287582     Earth MOID = 0.79249 AU
P   3.42           H    14.4           G    0.15           U    1
From 277 observations at 9 oppositions, 1991-2006, mean residual 0".64.

 

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