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172139 (2002 JS77)
Classification: Main-belt Asteroid          SPK-ID: 2172139
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09124650665913416 6.0274e-08  
a 2.227366066111279 1.2984e-08 au
q 2.024126693527526 1.3744e-07 au
i 6.33517990172394 5.2956e-06 deg
node 32.27056200987324 5.217e-05 deg
peri 122.5733192471374 5.8294e-05 deg
M 203.7280255665083 2.5336e-05 deg
tp 2459527.565298719791
(2021-Nov-09.06529872)
8.6774e-05 TDB
period 1214.187689296
3.32
1.0617e-05
2.907e-08
d
yr
n .2964945231891885 2.5925e-09 deg/d
Q 2.430605438695031 1.4169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      6287 days (17.21 yr)  
   first obs. used      2000-10-01  
   last obs. used      2017-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62226  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 07:48:53  

Additional Information
 Earth MOID = 1.04088 au 
 Jupiter MOID = 2.55403 au 
 T_jup = 3.631 
[ 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 16.6   n/a MPO436855  

172139 (2002 JS77)          Discovered 2002-May-11 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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