Logos (58534 1997 CQ29)

System parameters

Heliocentric orbitPhotometry Position 2015/05/10 04:30 UT
DES class = CLASSICAL HV = 7.28±0.05 +11:59:42.29 +02:23:45.9
<a> = 45.28 (AU) V = 23.6 (V2 = 24.6) Uncertainty = 0.3 (arcsec)
<e> = 0.125 Δmag = 0.45 Rates: -1.609, +0.609 ("/hr)
<i> = 2.01 (degrees) B-V = 1.03±0.09  
Perihelion = 1967 V-R = 0.64±0.07 Opposition: March
Aphelion = 2121    

Astrometric observations

Observation time (UT)Observatory/InstrumentRADEC Δ (AU)Δx (arcsec) Δx errorΔy (arcsec) Δy error
2001/11/17  06.96000 HST/WFPC2-WF3 +10:59:56.90 +07:55:57.0 41.85230 +0.05510 0.01580 +0.19230 0.02910
2002/06/18  08.03222 HST/WFPC2-PC +10:53:09.88 +08:40:02.1 41.87019 -0.14644 0.00178 +0.30011 0.00150
2002/06/30  03.68222 HST/WFPC2-PC +10:53:41.42 +08:36:32.0 42.05874 -0.12770 0.00170 +0.31091 0.00100
2002/07/12  04.04055 HST/WFPC2-PC +10:54:24.35 +08:31:54.2 42.23246 -0.10400 0.00100 +0.31814 0.00380
2003/05/04  04.72558 HST/NICMOS-NIC2 +10:58:21.04 +08:13:24.6 41.18642 -0.13201 0.00100 +0.31824 0.00756
2004/02/16  17.78994 HST/ACS-HRC +11:08:34.76 +07:14:00.2 40.82322 -0.14768 0.00053 +0.28121 0.00070
2004/05/01  12.76716 HST/ACS-HRC +11:03:44.23 +07:44:02.7 41.23066 -0.02039 0.00516 +0.30496 0.00130
2004/06/23  01.31358 HST/ACS-HRC +11:03:49.85 +07:41:55.3 42.09492 +0.06916 0.00169 +0.01995 0.00095
2007/12/17  07.13528 HST/WFPC2-PC +11:31:39.80 +04:59:25.3 42.05620 -0.03908 0.00100 -0.16130 0.00268

Orbital knowledge

Comments: Orbit published here.
Parameter Value Units
P period309.9±0.2days
a semimajor axis8220±40kilometers
e eccentricity0.546±0.008dimensionless
i inclination95.4±0.5degrees
ε mean longitude at epoch259.5±0.7degrees
Ω longitude of ascending node16.1±0.3degrees
ϖ longitude of periapsis223.8±0.7degrees

Angles are referenced to J2000 equatorial coordinates.

Epoch = Julian date 2452600.0

2015/05/10 04:30


Last updated: 2015/05/10 04:30 UT