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27990 (1997 VD6)
Classification: Main-belt Asteroid          SPK-ID: 2027990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04510747765398042 5.1449e-08  
a 3.0468751806504 1.7954e-08 au
q 2.909438326524745 1.625e-07 au
i 10.61286268802134 3.9623e-06 deg
node 80.19062044224742 2.7208e-05 deg
peri 82.86229431495292 5.5878e-05 deg
M 1.033272874217807 4.6935e-05 deg
tp 2458994.924382800650
(2020-May-25.42438280)
0.00025327 TDB
period 1942.586747266854
5.32
1.717e-05
4.701e-08
d
yr
n .1853199093973571 1.638e-09 deg/d
Q 3.184312034776056 1.8764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   data-arc span      8123 days (22.24 yr)  
   first obs. used      1997-11-09  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51885  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:14:10  

Additional Information
 Earth MOID = 1.94246 au 
 Jupiter MOID = 1.88283 au 
 T_jup = 3.210 
[ 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 13.0   n/a MPO344520  
diameter diameter 9.389 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27990 (1997 VD6)          Discovered 1997-Nov-09 by Kobayashi, T. at Oizumi
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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