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102185 (1999 RJ250)
Classification: Main-belt Asteroid          SPK-ID: 2102185
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172051509040698 2.975e-08  
a 2.282492081578246 8.8677e-09 au
q 1.889785874569265 6.8821e-08 au
i 5.250564401360473 4.614e-06 deg
node 182.9649762964188 3.9934e-05 deg
peri 101.6978341816664 4.2624e-05 deg
M 117.1705610304522 1.4105e-05 deg
tp 2458790.552393760287
(2019-Nov-03.05239376)
4.8773e-05 TDB
period 1259.541107838009
3.45
7.3402e-06
2.01e-08
d
yr
n .285818380805321 1.6656e-09 deg/d
Q 2.675198288587227 1.0393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      7766 days (21.26 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55831  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:47  

Additional Information
 Earth MOID = .880238 au 
 Jupiter MOID = 2.48604 au 
 T_jup = 3.579 
[ 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 16.6   n/a MPO432548  

102185 (1999 RJ250)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RJ250 = 2002 LW11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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