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JPL Small-Body Database Browser
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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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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483842025516438 4.4202e-08  
a 3.109593445886907 2.2947e-08 au
q 2.64817890215916 1.3885e-07 au
i 5.810757609172363 5.0556e-06 deg
node 147.6140124916485 4.1601e-05 deg
peri 183.1282964075027 4.4182e-05 deg
M 116.504075400041 1.3739e-05 deg
tp 2457952.324722830935
(2017-Jul-17.82472283)
7.6315e-05 TDB
period 2002.874997974373
5.48
2.217e-05
6.07e-08
d
yr
n .1797416216009933 1.9896e-09 deg/d
Q 3.571007989614654 2.6352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      7596 days (20.80 yr)  
   first obs. used      1998-03-20  
   last obs. used      2019-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55475  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:21:19  

Additional Information
 Earth MOID = 1.63648 au 
 Jupiter MOID = 1.78744 au 
 T_jup = 3.194 
[ 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

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