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178261 (2007 VH302)
Classification: Main-belt Asteroid          SPK-ID: 2178261
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2491202430569941 4.1511e-08  
a 2.666742731335683 1.6228e-08 au
q 2.002403133934866 1.0966e-07 au
i 11.67243615506963 6.281e-06 deg
node 245.3562714168385 3.3954e-05 deg
peri 148.7375046832086 3.8445e-05 deg
M 338.5547894342615 1.5303e-05 deg
tp 2459095.254080373963
(2020-Sep-02.75408037)
6.77e-05 TDB
period 1590.633434447323
4.35
1.452e-05
3.975e-08
d
yr
n .2263249295555544 2.0659e-09 deg/d
Q 3.331082328736501 2.0271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      11362 days (31.11 yr)  
   first obs. used      1989-09-18  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:29:45  

Additional Information
 Earth MOID = 1.01968 au 
 Jupiter MOID = 2.13568 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457379.5 (2015-Dec-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2522601885900613 4.1858e-08  
q 1.993287989473646 1.1086e-07 au
tp 2457500.560183312888
(2016-Apr-22.06018331)
6.4533e-05 TDB
node 245.4341228700538 3.4004e-05 deg
peri 148.0583551458314 3.8229e-05 deg
i 11.66600316546005 6.2658e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      11362 days (31.11 yr)  
   first obs. used      1989-09-18  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:29:45  

Additional Information
 Jupiter MOID = 2.13568 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.752067568864766E-15 -4.614169149268695E-15 3.039254660850579E-13 -3.047860253449406E-14 1.257514762296787E-13 -4.20453534622415E-15
q -4.614169149268695E-15 1.229019147207655E-14 -8.53829034423519E-13 8.034057218202707E-14 -3.56010560197815E-13 1.086702316649463E-14
tp 3.039254660850579E-13 -8.53829034423519E-13 4.164506210548234E-9 -4.887759683610317E-11 1.181017615555585E-9 2.503829741460334E-12
node -3.047860253449406E-14 8.034057218202707E-14 -4.887759683610317E-11 1.15629467552357E-9 -1.144719001982099E-9 8.644465977918661E-11
peri 1.257514762296787E-13 -3.56010560197815E-13 1.181017615555585E-9 -1.144719001982099E-9 1.461475212821631E-9 -8.377077609575233E-11
i -4.20453534622415E-15 1.086702316649463E-14 2.503829741460334E-12 8.644465977918661E-11 -8.377077609575233E-11 3.92604072081006E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO446086  

178261 (2007 VH302)          Discovered 2007-Nov-14 by Lowe, A. at Mayhill
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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