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77708 (2001 OS31)
Classification: Main-belt Asteroid          SPK-ID: 2077708
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107681809112744 5.1092e-08  
a 3.097098198495489 2.3756e-08 au
q 2.763597061481674 1.5446e-07 au
i 10.79494366891296 4.2212e-06 deg
node 104.8501492432156 2.5537e-05 deg
peri 245.6825985279413 3.2454e-05 deg
M 130.9989936015427 2.1748e-05 deg
tp 2458276.070130573742
(2018-Jun-06.57013057)
0.00011942 TDB
period 1990.814935469716
5.45
2.2905e-05
6.271e-08
d
yr
n .1808304697669254 2.0805e-09 deg/d
Q 3.430599335509303 2.6314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      7219 days (19.76 yr)  
   first obs. used      2000-04-28  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52567  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:11:14  

Additional Information
 Earth MOID = 1.77825 au 
 Jupiter MOID = 1.98921 au 
 T_jup = 3.187 
[ 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 14.1   n/a MPO287283  

77708 (2001 OS31)          Discovered 2001-Jul-22 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 OS31 = 2000 HG96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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