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7981 (1978 VL10)
Classification: Main-belt Asteroid          SPK-ID: 2007981
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080994551033037 4.4187e-08  
a 2.886424899217153 1.2438e-08 au
q 2.57440394041517 1.2879e-07 au
i 1.969074605186918 3.8474e-06 deg
node 161.2355037490086 0.0001199 deg
peri 243.5207748847008 0.00012085 deg
M 184.8244994749697 1.6255e-05 deg
tp 2459872.084877800878
(2022-Oct-19.58487780)
8.3622e-05 TDB
period 1791.178304431232
4.90
1.1578e-05
3.17e-08
d
yr
n .200985015902319 1.2991e-09 deg/d
Q 3.198445858019135 1.3783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2145  
   data-arc span      24335 days (66.63 yr)  
   first obs. used      1953-10-31  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:45:23  

Additional Information
 Earth MOID = 1.58423 au 
 Jupiter MOID = 2.16438 au 
 T_jup = 3.283 
[ 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 13.7   n/a MPO473876  
diameter diameter 5.665 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.219   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7981 (1978 VL10)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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