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102976 (1999 XG76)
Classification: Main-belt Asteroid          SPK-ID: 2102976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09160146834516787 3.5954e-08  
a 2.26318324093538 9.3553e-09 au
q 2.055872332931523 8.3743e-08 au
i 3.846391362693587 3.7337e-06 deg
node 231.589414899322 5.9284e-05 deg
peri 244.8903156130079 6.3692e-05 deg
M 34.94677803866815 2.5613e-05 deg
tp 2459079.779049718895
(2020-Aug-18.27904972)
8.8093e-05 TDB
period 1243.592243413981
3.40
7.711e-06
2.111e-08
d
yr
n .2894839541711093 1.795e-09 deg/d
Q 2.470494148939236 1.0212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      8203 days (22.46 yr)  
   first obs. used      1998-07-30  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53173  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:33:27  

Additional Information
 Earth MOID = 1.07558 au 
 Jupiter MOID = 2.59964 au 
 T_jup = 3.610 
[ 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 15.8   n/a MPO296810  
diameter diameter 1.806 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.284   0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102976 (1999 XG76)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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