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85969 (1999 GP2)
Classification: Main-belt Asteroid          SPK-ID: 2085969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487975484127712 4.3781e-08  
a 3.108627630331855 2.135e-08 au
q 2.646071460010273 1.3632e-07 au
i 5.812285054582994 4.9651e-06 deg
node 147.608977346716 3.7064e-05 deg
peri 183.1460830665211 3.9102e-05 deg
M 188.3798929539079 1.2796e-05 deg
tp 2459954.870812502315
(2023-Jan-10.37081250)
7.4686e-05 TDB
period 2001.941954322169
5.48
2.0624e-05
5.647e-08
d
yr
n .1798253936497831 1.8526e-09 deg/d
Q 3.571183800653438 2.4527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      7991 days (21.88 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54148  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:42:04  

Additional Information
 Earth MOID = 1.63529 au 
 Jupiter MOID = 1.79048 au 
 T_jup = 3.195 
[ 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 14.9   n/a MPO244837  
diameter diameter 5.510 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85969 (1999 GP2)          Discovered 1999-Apr-08 by Bickel, W. at Bergisch Gladbach
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 GP2 = 2001 SA66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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