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101817 (1999 JP12)
Classification: Main-belt Asteroid          SPK-ID: 2101817
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450841084049092 3.8816e-08  
a 2.719815778349788 1.4044e-08 au
q 2.325213731122305 1.1063e-07 au
i 10.45175971787601 3.6268e-06 deg
node 116.9147771329672 3.2797e-05 deg
peri 355.1574218021717 3.896e-05 deg
M 344.4603781040812 2.1047e-05 deg
tp 2459071.220546319920
(2020-Aug-09.72054632)
9.5898e-05 TDB
period 1638.353677180373
4.49
1.2689e-05
3.474e-08
d
yr
n .2197327750498686 1.7019e-09 deg/d
Q 3.114417825577271 1.6081e-08 au
  Orbit Determination Parameters
   # obs. used (total)      847  
   data-arc span      7837 days (21.46 yr)  
   first obs. used      1999-05-08  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59281  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:20  

Additional Information
 Earth MOID = 1.34193 au 
 Jupiter MOID = 1.99527 au 
 T_jup = 3.320 
[ 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 14.7   n/a MPO226696  
diameter diameter 3.087 km 0.469 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101817 (1999 JP12)          Discovered 1999-May-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 JP12 = 2001 TJ203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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