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215126 (1999 RX122)
Classification: Main-belt Asteroid          SPK-ID: 2215126
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3308754595347334 4.1244e-08  
a 3.11044382760914 2.8887e-08 au
q 2.081274296791991 1.3558e-07 au
i 12.48192811068794 7.4454e-06 deg
node 209.266792472074 2.2963e-05 deg
peri 112.8704655162592 2.7945e-05 deg
M 289.1770465866206 1.6623e-05 deg
tp 2459394.688094772369
(2021-Jun-29.18809477)
9.7043e-05 TDB
period 2003.696644642397
5.49
2.7913e-05
7.642e-08
d
yr
n .1796679157808591 2.5029e-09 deg/d
Q 4.13961335842629 3.8445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      9283 days (25.42 yr)  
   first obs. used      1994-11-28  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55935  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:15:47  

Additional Information
 Earth MOID = 1.10726 au 
 Jupiter MOID = 1.58796 au 
 T_jup = 3.098 
[ 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 15.7   n/a MPO433407  
diameter diameter 2.460 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.168   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215126 (1999 RX122)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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