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120960 (1998 VC3)
Classification: Main-belt Asteroid          SPK-ID: 2120960
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016258475881084 5.083e-08  
a 2.36577289270854 1.0358e-08 au
q 1.88877192801521 1.2221e-07 au
i .7914576529046286 4.563e-06 deg
node 312.5496103460324 0.00037739 deg
peri 44.6401059169679 0.00037752 deg
M 6.266199361720346 1.0789e-05 deg
tp 2458977.365521658181
(2020-May-07.86552166)		 3.9766e-05 TDB
period 1329.101058279839
3.64		 8.729e-06
2.39e-08		 d
yr
n .2708597647690706 1.7789e-09 deg/d
Q 2.84277385740187 1.2447e-08 au
   Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      8018 days (21.95 yr)  
   first obs. used      1998-11-10  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:29  

Additional Information
 Earth MOID = .884751 au 
 Jupiter MOID = 2.60486 au 
 T_jup = 3.520 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457137.5 (2015-Apr-25.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027779738938602 5.0817e-08  
q 1.88568961747106 1.2227e-07 au
tp 2457648.947585059625
(2016-Sep-17.44758506)		 3.6682e-05 TDB
node 312.6863307990059 0.00037764 deg
peri 44.73446194077198 0.00037777 deg
i .7912426563734198 4.564e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      8018 days (21.95 yr)  
   first obs. used      1998-11-10  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:29  

Additional Information
 Jupiter MOID = 2.60486 au 
 T_jup = 3.520 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.582399613215507E-15 -6.199734314920198E-15 1.135314180935245E-13 4.914205165722758E-14 -1.2909176676514E-14 -5.303561670744126E-16
q -6.199734314920198E-15 1.49490468637879E-14 -2.067680390326622E-13 -1.198856628673537E-13 4.166159761682373E-14 1.311613314601363E-15
tp 1.135314180935245E-13 -2.067680390326622E-13 1.345599025967299E-9 6.551234293446176E-13 3.853426033426397E-10 8.550423843441002E-14
node 4.914205165722758E-14 -1.198856628673537E-13 6.551234293446176E-13 1.426126892681357E-7 -1.425984687610059E-7 4.067510123425687E-10
peri -1.2909176676514E-14 4.166159761682373E-14 3.853426033426397E-10 -1.425984687610059E-7 1.427085767483019E-7 -4.067104136102727E-10
i -5.303561670744126E-16 1.311613314601363E-15 8.550423843441002E-14 4.067510123425687E-10 -4.067104136102727E-10 2.082996731703135E-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 16.6   n/a MPO439780  
rotation period rot_per 6.36 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

120960 (1998 VC3)          Discovered 1998-Nov-10 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 VC3 = 2000 ER71 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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