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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457014.5 (2014-Dec-23.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1463231580448328 4.3584e-08  
q 2.657134287302816 1.3521e-07 au
tp 2457952.085593678568
(2017-Jul-17.58559368)
7.0226e-05 TDB
node 147.6266626764637 3.7057e-05 deg
peri 182.7965999216702 3.9188e-05 deg
i 5.809427255319417 4.963e-06 deg
  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
 Jupiter MOID = 1.79048 au 
 T_jup = 3.195 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.89954683760507E-15 -5.83891224590534E-15 5.68011887385827E-13 3.974557297892028E-15 8.361042326518759E-14 -6.679619776681552E-16
q -5.83891224590534E-15 1.828128447603265E-14 -1.60089240720586E-12 -9.409363579224937E-15 -2.698830899185469E-13 2.69526529913019E-15
tp 5.68011887385827E-13 -1.60089240720586E-12 4.931693528173893E-9 -1.581198840789324E-12 9.005052519213128E-10 -6.85807690040779E-13
node 3.974557297892028E-15 -9.409363579224937E-15 -1.581198840789324E-12 1.373187929115719E-9 -1.36594168769281E-9 2.946364720262196E-11
peri 8.361042326518759E-14 -2.698830899185469E-13 9.005052519213128E-10 -1.36594168769281E-9 1.535663888704776E-9 -2.945069328724101E-11
i -6.679619776681552E-16 2.69526529913019E-15 -6.85807690040779E-13 2.946364720262196E-11 -2.945069328724101E-11 2.463095497547347E-11

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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