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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07426441821115463 4.6835e-08  
a 2.4749678662699 8.7862e-09 au
q 2.291165817590063 1.127e-07 au
i 2.819526138604167 4.459e-06 deg
node 338.4333758388168 7.4366e-05 deg
peri 67.94238571425815 8.1918e-05 deg
M 97.91452110210615 3.1092e-05 deg
tp 2458813.690281400486
(2019-Nov-26.19028140)
0.00012356 TDB
period 1422.17412829515
3.89
7.5731e-06
2.073e-08
d
yr
n .2531335599752153 1.3479e-09 deg/d
Q 2.658769914949737 9.4387e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1870  
   data-arc span      9841 days (26.94 yr)  
   first obs. used      1994-04-13  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52677  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:01:30  

Additional Information
 Earth MOID = 1.30114 au 
 Jupiter MOID = 2.59341 au 
 T_jup = 3.476 
[ 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 14.62   n/a MPCxxxxx  

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

Alternate Designations
 1995 OS1 = 1998 HA78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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