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392912 (2012 VR77)
Classification: Main-belt Asteroid          SPK-ID: 2392912
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 .1953499421698482 2.718e-07  
a 2.599157309965506 7.9954e-08 au
q 2.091412079773406 7.4805e-07 au
i 17.42130779788584 2.3235e-05 deg
node 19.95039123290538 2.2787e-05 deg
peri 32.88716392062465 5.9344e-05 deg
M 292.4187717859672 5.5669e-05 deg
tp 2459287.823305675497
(2021-Mar-14.32330568)
0.00024584 TDB
period 1530.549129938735
4.19
7.0623e-05
1.934e-07
d
yr
n .2352096988970293 1.0853e-08 deg/d
Q 3.106902540157606 9.5573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      3389 days (9.28 yr)  
   first obs. used      2008-12-31  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64854  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:06:35  

Additional Information
 Earth MOID = 1.11793 au 
 Jupiter MOID = 2.39662 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457128.5 (2015-Apr-16.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972855078603273 2.7505e-07  
q 2.08519390207928 7.5932e-07 au
tp 2457754.731690357194
(2017-Jan-01.23169036)
0.00019527 TDB
node 20.12369306024696 2.2722e-05 deg
peri 32.2791744365036 5.8261e-05 deg
i 17.45648986724808 2.3257e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      3389 days (9.28 yr)  
   first obs. used      2008-12-31  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64854  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:06:35  

Additional Information
 Jupiter MOID = 2.39662 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.564988451691658E-14 -2.084031897346822E-13 -4.862502777802304E-11 3.732262290435526E-13 -1.308069883039636E-11 -9.490773010293726E-13
q -2.084031897346822E-13 5.765691842165041E-13 1.334289835521769E-10 -1.032184324367955E-12 3.564851390347409E-11 2.650160407441273E-12
tp -4.862502777802304E-11 1.334289835521769E-10 3.812956697797348E-8 -2.432404334512085E-10 1.044339730791725E-8 6.00248018071617E-10
node 3.732262290435526E-13 -1.032184324367955E-12 -2.432404334512085E-10 5.163090707262604E-10 -5.540839371341889E-10 5.749433217024363E-11
peri -1.308069883039636E-11 3.564851390347409E-11 1.044339730791725E-8 -5.540839371341889E-10 3.39436851229639E-9 9.973812482069532E-11
i -9.490773010293726E-13 2.650160407441273E-12 6.00248018071617E-10 5.749433217024363E-11 9.973812482069532E-11 5.408801175085262E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO437609  

392912 (2012 VR77)          Discovered 2010-Mar-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2012 VR77 = 2010 GH125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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