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27987 (1997 VR3)
Classification: Main-belt Asteroid          SPK-ID: 2027987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141399973563581 5.0947e-08  
a 2.599659259152001 9.9621e-09 au
q 2.04296823226976 1.2932e-07 au
i .8655296895597701 4.0071e-06 deg
node 233.6061342682223 0.00027913 deg
peri 135.573281631507 0.00027925 deg
M 169.7300813565984 1.2147e-05 deg
tp 2458278.679208045979
(2018-Jun-09.17920805)
4.8905e-05 TDB
period 1530.992520751216
4.19
8.8003e-06
2.409e-08
d
yr
n .2351415798056007 1.3516e-09 deg/d
Q 3.156350286034243 1.2095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      13029 days (35.67 yr)  
   first obs. used      1984-08-24  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:25:00  

Additional Information
 Earth MOID = 1.04246 au 
 Jupiter MOID = 2.31003 au 
 T_jup = 3.382 
[ 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 14.6   n/a MPO468060  
diameter diameter 5.825 km 1.466 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.082   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

27987 (1997 VR3)          Discovered 1997-Nov-06 by Kobayashi, T. at Oizumi
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 VR3 = 1984 QZ1 = 1999 FG11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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