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20492 (1999 OC5)
Classification: Main-belt Asteroid          SPK-ID: 2020492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083725281079149 1.8315e-08  
a 2.555951212547495 8.5887e-09 au
q 2.023361196668482 4.5526e-08 au
i 15.43399861149918 6.2938e-07 deg
node 129.7023816107713 4.4854e-06 deg
peri 197.4191170813675 6.9623e-06 deg
M 80.89879682986793 5.4126e-06 deg
tp 2458865.097088310309
(2020-Jan-16.59708831)
2.1721e-05 TDB
period 1492.544425131789
4.09
7.523e-06
2.06e-08
d
yr
n .2411988507264785 1.2157e-09 deg/d
Q 3.088541228426507 1.0378e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2007  
   data-arc span      11724 days (32.10 yr)  
   first obs. used      1989-02-02  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45627  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:22:17  

Additional Information
 Earth MOID = 1.0135 au 
 Jupiter MOID = 2.25835 au 
 T_jup = 3.357 
[ 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 13.4   n/a MPO344464  
diameter diameter 5.058 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.817 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.478   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20492 (1999 OC5)          Discovered 1999-Jul-16 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 OC5 = 1989 CV4 = 1998 GH6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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