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14321 (1978 VT9)
Classification: Main-belt Asteroid          SPK-ID: 2014321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2000273894243907 4.4019e-08  
a 2.229278684196703 8.5686e-09 au
q 1.783361888697396 9.7667e-08 au
i 3.844857757863477 4.2466e-06 deg
node 55.33533347152272 6.4232e-05 deg
peri 289.2214082034865 6.5253e-05 deg
M 230.0316289273535 1.6546e-05 deg
tp 2459439.414720965024
(2021-Aug-12.91472097)
5.7771e-05 TDB
period 1215.751942132816
3.33
7.0094e-06
1.919e-08
d
yr
n .2961130371450982 1.7072e-09 deg/d
Q 2.67519547969601 1.0283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      15735 days (43.08 yr)  
   first obs. used      1977-04-24  
   last obs. used      2020-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:40:40  

Additional Information
 Earth MOID = .78061 au 
 Jupiter MOID = 2.73814 au 
 T_jup = 3.614 
[ show covariance matrix ]

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 15.6   n/a MPO452372  

14321 (1978 VT9)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 VT9 = 1991 RM20 = 1998 UZ31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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