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66856 (1999 VW22)
Classification: Main-belt Asteroid          SPK-ID: 2066856
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01903617127698158 3.3551e-08  
a 2.66848252776082 1.3467e-08 au
q 2.617684837312733 8.8942e-08 au
i 15.64093756804721 4.0013e-06 deg
node 129.5479346482984 1.3971e-05 deg
peri 138.1499311029692 0.00012655 deg
M 66.13646976582631 0.00012342 deg
tp 2458907.994874289072
(2020-Feb-28.49487429)
0.00054646 TDB
period 1592.190294232261
4.36
1.2053e-05
3.3e-08
d
yr
n .2261036267487038 1.7116e-09 deg/d
Q 2.719280218208908 1.3723e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1522  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5229  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:23  

Additional Information
 Earth MOID = 1.60899 au 
 Jupiter MOID = 2.37732 au 
 T_jup = 3.329 
[ 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 14.29   n/a E2021B10  
diameter diameter 3.562 km 0.643 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.350   0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66856 (1999 VW22)          Discovered 1999-Nov-13 by Griffin, I. P., Brady, N. at Lake Tekapo
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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