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

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1807675570118028 8.0098e-08  
a 2.281584718849121 2.0745e-08 AU
q 1.869148223107304 1.8298e-07 AU
i 23.56047626286164 1.2163e-05 deg
node 320.2654316908005 2.2559e-05 deg
peri 305.50474797794 5.631e-05 deg
M 212.8062637657007 6.3296e-05 deg
tp 2457515.183391953816
(2016-May-06.68339195)
0.00022583 JED
period 1258.79012139783
3.45
1.7168e-05
4.7e-08
d
yr
n .285988898292462 3.9005e-09 deg/d
Q 2.694021214590937 2.4495e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      22633 days (61.97 yr)  
   first obs. used      1953-01-10  
   last obs. used      2014-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49872  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:49:00  

Additional Information
 Earth MOID = .922673 AU 
 T_jup = 3.475 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO267786  

21101 (1992 OJ1)          Discovered 1992-Jul-26 by Debehogne, H. at La Silla (809)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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