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102972 (1999 XP74)
Classification: Main-belt Asteroid          SPK-ID: 2102972
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047085998633417 5.5359e-08  
a 2.574067621324673 1.5276e-08 au
q 2.304540604742204 1.4714e-07 au
i 9.669967872108129 3.647e-06 deg
node 92.6935129656477 2.8737e-05 deg
peri 81.44425001277793 3.3176e-05 deg
M 312.7669408855284 1.813e-05 deg
tp 2459398.411908987175
(2021-Jul-02.91190899)		 7.6457e-05 TDB
period 1508.441091285435
4.13		 1.3428e-05
3.676e-08		 d
yr
n .2386569830799438 2.1245e-09 deg/d
Q 2.843594637907142 1.6875e-08 au
   Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7713 days (21.12 yr)  
   first obs. used      1999-12-07  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56989  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:32:55  

Additional Information
 Earth MOID = 1.33342 au 
 Jupiter MOID = 2.18703 au 
 T_jup = 3.401 
[ 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 15.8   n/a MPO453482  
diameter diameter 4.583 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102972 (1999 XP74)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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