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173885 (2001 UA61)
Classification: Main-belt Asteroid          SPK-ID: 2173885
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05303796943735286 8.39e-08  
a 2.950091223090034 2.8028e-08 au
q 2.793624374962382 2.4966e-07 au
i 1.210476071971118 1.0917e-05 deg
node 223.3137275474794 0.00035001 deg
peri 193.7870006460324 0.00036202 deg
M 213.9163215269701 9.3773e-05 deg
tp 2459751.518768483974
(2022-Jun-21.01876848)
0.0004861 TDB
period 1850.766351725913
5.07
2.6376e-05
7.221e-08
d
yr
n .1945140182953325 2.7721e-09 deg/d
Q 3.106558071217686 2.9515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      8221 days (22.51 yr)  
   first obs. used      1996-11-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54345  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:28  

Additional Information
 Earth MOID = 1.80535 au 
 Jupiter MOID = 2.08619 au 
 T_jup = 3.267 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO251410  
rotation period rot_per 5.034 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]

173885 (2001 UA61)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 UA61 = 2004 GM58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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