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21101 (1992 OJ1)
Classification: Main-belt Asteroid          SPK-ID: 2021101
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1804301852851992 1.5827e-08  
a 2.281084785845364 8.4483e-09 au
q 1.869508235284036 3.5375e-08 au
i 23.5640422652079 8.5024e-07 deg
node 320.2311135590376 1.7108e-06 deg
peri 305.6217956385909 3.4213e-06 deg
M 178.0774484030251 3.705e-06 deg
tp 2458774.032054235893
(2019-Oct-17.53205424)
1.0877e-05 TDB
period 1258.376411413539
3.45
6.9908e-06
1.914e-08
d
yr
n .2860829214015627 1.5893e-09 deg/d
Q 2.692661336406692 9.9726e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1974  
   data-arc span      24927 days (68.25 yr)  
   first obs. used      1953-01-10  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:30:27  

Additional Information
 Earth MOID = .921218 au 
 Jupiter MOID = 2.68929 au 
 T_jup = 3.475 
[ 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 13.88   n/a E2021B10  
rotation period rot_per 7.889 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Linville, D.; Jiang, H.; Michalik, D.; Wilson, S.; Ditteon, R. (2017) Minor Planet Bull. 44, 173-176.]

21101 (1992 OJ1)          Discovered 1992-Jul-26 by Debehogne, H. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 OJ1 = 1992 OU10 = 1999 NL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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