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)

 

My asteroids measurements from IAU B00 (at home):

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,

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,

 

 

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

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

 

 

Statistics on residuals from observations of minor planets, for my observatories
2007 SEP. 2

COD     Year           Tot       <1"      <2"       <3"      <4"      >=4"       R.A.            Decl.
B00     2007      
    380       273       92        12        3         0  +0.30 +/- 0.51  +0.37 +/- 0.55
B00     2006      
    125        88       37         0        0         0  +0.39 +/- 0.62  +0.22 +/- 0.42

B44     2007           190       127       49         9        5         0  -0.05 +/- 0.86  +0.42 +/- 0.66

 

My asteroids discoveries:

Asteroide name Discovery date Observatory Telescope size Statu
2006 SW154 2006 September 22th 184 0.6m = 2000 SG62 = 1994 RD21.
2007 PR43 2007 August 12th B44 0.43m U=4. 55 observations at 2 oppositions, 2003-2007.
Last observation 2007-09-17
2007 PQ43 2007 August 12th B44 0.43m U=2. 76 observations at 3 oppositions, 2002-2007.
Last Observation 2007-09-17
2007 RC12 2007 September 10th 586 0,6m From 16 observations 2007 Sept. 10-17. Observations desirable between 2007 Sept. 30-Oct. 6.
2007 RG216 2007 September 13th 586 0,6m From 22 observations 2007 Sept. 13-22. Observations desirable between 2007 Oct. 3-9.
2007 RP16 2007 September 10th 586 0,6m Väisälä
2007 RR19 2007 September 13th 586 0,6m From 10 observations 2007 Sept. 13-15. Observations desirable between 2007 Oct. 3-9.
2007 RY11 2007 September 10th 586 0,6m Väisälä
2007 RZ11 2007 September 10th 586 0,6m Väisälä

my_asteroids.jpg (78984 octets)

 

How I do asteroides measurements?:

For such measurements, I use an home-made 430mm f/2.7 newtonian telescope. My CCD camera is an Audine one, with a Kaf3200e sensor. The CCD camera is linked to my computer through an Ethernaude interface. 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 Audine, Ethernaude,   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 55722:

(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.