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JPL Small-Body Database Browser
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19922 (1978 VV4)
Classification: Main-belt Asteroid          SPK-ID: 2019922
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005781896237911 6.0213e-08  
a 2.663220526678192 1.5283e-08 au
q 2.39535862753598 1.5665e-07 au
i 2.796354560966693 5.4907e-06 deg
node 12.87954960118792 8.974e-05 deg
peri 357.5723936972964 9.2387e-05 deg
M 245.6085215488264 2.1959e-05 deg
tp 2459504.929286701276
(2021-Oct-17.42928670)
9.7772e-05 TDB
period 1587.483138352568
4.35
1.3665e-05
3.741e-08
d
yr
n .2267740622263206 1.952e-09 deg/d
Q 2.931082425820404 1.682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      933  
   data-arc span      15055 days (41.22 yr)  
   first obs. used      1978-11-05  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:58:18  

Additional Information
 Earth MOID = 1.39487 au 
 Jupiter MOID = 2.52977 au 
 T_jup = 3.376 
[ 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 14.9   n/a MPO435884  
diameter diameter 3.253 km 0.396 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19922 (1978 VV4)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 VV4 = 1999 RS55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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