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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144742210237929 3.7336e-08  
a 2.599146399115437 8.4951e-09 au
q 2.041696499838358 9.6425e-08 au
i .8657386607381309 3.9215e-06 deg
node 233.5980024429921 0.00023436 deg
peri 135.570564823444 0.00023452 deg
M 262.8962452159371 1.1739e-05 deg
tp 2459809.336476560335
(2022-Aug-17.83647656)
5.1271e-05 TDB
period 1530.539492445177
4.19
7.5036e-06
2.054e-08
d
yr
n .2352111799643059 1.1531e-09 deg/d
Q 3.156596298392517 1.0317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1526  
   data-arc span      13459 days (36.85 yr)  
   first obs. used      1984-08-24  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5074  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:00:16  

Additional Information
 Earth MOID = 1.04037 au 
 Jupiter MOID = 2.31159 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 14.59   n/a MPCxxxxx  
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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