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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107681808910984 5.2168e-08  
a 3.097098198554728 2.4248e-08 au
q 2.763597062159405 1.5883e-07 au
i 10.7949436746115 4.2213e-06 deg
node 104.8501523529814 2.7005e-05 deg
peri 245.6825954025021 3.3749e-05 deg
M 130.9989936562239 2.1854e-05 deg
tp 2458276.070130250568
(2018-Jun-06.57013025)
0.00012019 TDB
period 1990.814935526834
5.45
2.338e-05
6.401e-08
d
yr
n .1808304697617373 2.1237e-09 deg/d
Q 3.43059933495005 2.686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      7193 days (19.69 yr)  
   first obs. used      2000-04-28  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:14:21  

Additional Information
 Earth MOID = 1.77825 au 
 Jupiter MOID = 1.98921 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456957.5 (2014-Oct-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039362125450285 5.1319e-08  
q 2.779904806092365 1.5467e-07 au
tp 2456273.864172636245
(2012-Dec-12.36417264)
0.00012762 TDB
node 105.0631887607649 2.6865e-05 deg
peri 244.0745955019664 3.4396e-05 deg
i 10.81663087309765 4.2297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      7193 days (19.69 yr)  
   first obs. used      2000-04-28  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:14:21  

Additional Information
 Jupiter MOID = 1.98921 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.63365533610971E-15 -7.861039601548127E-15 1.546636454279812E-12 -4.730572019428664E-15 2.177127330770836E-13 8.32247314842582E-16
q -7.861039601548127E-15 2.392247168402582E-14 -5.111765846627665E-12 1.856410666165015E-14 -7.107730959554338E-13 -1.742564956986501E-15
tp 1.546636454279812E-12 -5.111765846627665E-12 1.628619155926302E-8 -1.091159296375919E-11 2.780891678566292E-9 -3.914368749805759E-12
node -4.730572019428664E-15 1.856410666165015E-14 -1.091159296375919E-11 7.217296544006823E-10 -7.10051493812227E-10 7.559231695588512E-12
peri 2.177127330770836E-13 -7.107730959554338E-13 2.780891678566292E-9 -7.10051493812227E-10 1.183066811526313E-9 -8.054008443216626E-12
i 8.32247314842582E-16 -1.742564956986501E-15 -3.914368749805759E-12 7.559231695588512E-12 -8.054008443216626E-12 1.789017694802825E-11

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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