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20968 (1978 VM8)
Classification: Main-belt Asteroid          SPK-ID: 2020968
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513755842303127 3.0654e-08  
a 2.371697560139727 9.7625e-09 au
q 2.012680456355969 7.0706e-08 au
i 5.932716436384521 5.1718e-06 deg
node 229.296779457118 3.99e-05 deg
peri 243.9533321323452 4.5064e-05 deg
M 210.6359668655417 2.0799e-05 deg
tp 2459950.016941986185
(2023-Jan-05.51694199)
7.828e-05 TDB
period 1334.09693708288
3.65
8.2372e-06
2.255e-08
d
yr
n .2698454587469269 1.6661e-09 deg/d
Q 2.730714663923485 1.124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      853  
   data-arc span      15566 days (42.62 yr)  
   first obs. used      1978-11-05  
   last obs. used      2021-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:29:08  

Additional Information
 Earth MOID = 1.0378 au 
 Jupiter MOID = 2.40317 au 
 T_jup = 3.521 
[ 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 15.89   n/a E2021B10  

20968 (1978 VM8)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 VM8 = 1998 HK78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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