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152105 (2004 RM121)
Classification: Main-belt Asteroid          SPK-ID: 2152105
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1002111061241148 6.5267e-08  
a 3.077941825569733 3.0905e-08 au
q 2.769497870643713 2.2176e-07 au
i 2.228236484273249 4.9946e-06 deg
node 30.59480107799319 0.00012841 deg
peri 10.36750560950229 0.00013285 deg
M 318.44484224398 3.6349e-05 deg
tp 2459428.172969648458
(2021-Aug-01.67296965)
0.00020106 TDB
period 1972.372949578588
5.40
2.9706e-05
8.133e-08
d
yr
n .1825212620548851 2.7489e-09 deg/d
Q 3.386385780495754 3.4002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      9005 days (24.65 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-10-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54777  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:25:43  

Additional Information
 Earth MOID = 1.77664 au 
 Jupiter MOID = 1.99453 au 
 T_jup = 3.220 
[ 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 15.97   n/a E2021B55  

152105 (2004 RM121)          Discovered 2004-Sep-07 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

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