Asteroid 2650 (original designation 1931EG) was discovered 14 March 1931 by M. Wolf In Heidelberg.
This asteroid was named for me in 1989 for work I had done as a summer student at the IAU Minor Planet Center with Dr. Brian Marsden.
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Heliocentric osc. elements wrt ecliptic and mean equinox of J2000.0:
EPOCH= 2451200.5 != 1999-Jan-22.0000000 (TDB)
EC= .198098763 QR= 2.112688759 TP= 2450741.7289591
OM= 332.6346944 W= 22.1494127 IN= 13.9737276
Asteroid physical parameters:
GM= n.a. RAD= n.a. ROTPER= n.a.
H= 11.5 G= .150 B-V= n.a.
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H = 11.5 corresponds to a diameter between 13 and 30km. Actual size depends on
the albedo of the asteroid (usually somewhere between 0.05 and 0.25).
Info from Lowell Observatory:
I'll make this pretty later.....
Orbit computer: E. Bowell
Absolute Magnitude H: 11.5
Slope Parameter G: 0.15
Color Index B-V: ??
IRAS diameter: ??
IRAS Taxonomic Classification: ??
Six Integer Codes: 0 0 0 0 0 0
Orbital arc (days): 24802
Number of Observations used in orbit computation: 49
Epoch of Osculation: 1999 May 02
Mean Anomaly: 128.757516 deg
Argument of Perihelion: 22.174697 deg (J2000.0)
Longitude of Ascending Node: 332.636010 deg (J2000.0)
Inclination: 13.972883 deg (J2000.0)
Eccentricity: 0.19801767
Semimajor Axis: 2.63488898 AU
Date of Orbit Computation: 1999 March 04 MST
Absolute value of the current 1-sigma ephemeris uncertainty (CEU): 1.8e-1 arcsec
Rate of change of CEU: -1.1e-3 arcsec/day
Date of CEU: 1999 March 26 (0hr UT)
Next peak ephemeris uncertainty (PEU) from date of CEU: 3.2e-1 arcsec, Date: 2000 April 07
Greatest PEU in 10 years from date of CEU: 4.3e-1 arcsec, Date: 2005 June 12
Greatest PEU in 10 years from date of next PEU: 3.9e-1 arcsec, Date: 2005 June 12
After wanting to get images of Asteroid 2650 for 10 years, I finally managed to do it! If the weather had cooperated I would have gotten good science data. Unfortunately, fog and clouds did me in and cut my observing short.
Data taken on 8 March 1999 UT with the Nickel 40" Telecope at Lick Observatory using Dewar #5 with pixel scale 0.56 arcsec/pixel and field of view 4.4 arminutes. Field center at approximately 07 48 29 +28 31 12 (J2000). North is up, East is left.
Digital Sky Survey Reference frame. Notice how the asteroid is not visible here and shifts position in the following images.
V-Band Image, 5 minute exposure started at 4:47:51.0 UT
B-Band Image, 5 minute exposure started at 5:08:08.0 UT
R-Band Image, 5 minute exposure started at 5:19:09.0 UT, Fog started rolling in half way through....