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20105 (1995 OS1)
Classification: Main-belt Asteroid          SPK-ID: 2020105
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07415531821339647 4.6908e-08  
a 2.474972769427967 1.0174e-08 au
q 2.291440376141545 1.1285e-07 au
i 2.819374994448291 4.496e-06 deg
node 338.4353833477105 8.3199e-05 deg
peri 67.9736098478287 9.2317e-05 deg
M 47.26791911026734 3.5256e-05 deg
tp 2458813.768301608626
(2019-Nov-26.26830161)
0.00013986 TDB
period 1422.178354500326
3.89
8.7693e-06
2.401e-08
d
yr
n .2531328077528531 1.5608e-09 deg/d
Q 2.658505162714389 1.0928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1641  
   data-arc span      9422 days (25.80 yr)  
   first obs. used      1994-04-13  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53789  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:01:14  

Additional Information
 Earth MOID = 1.30239 au 
 Jupiter MOID = 2.59375 au 
 T_jup = 3.476 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO347680  

20105 (1995 OS1)          Discovered 1995-Jul-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 OS1 = 1998 HA78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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