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152216 (2005 RH21)
Classification: Main-belt Asteroid          SPK-ID: 2152216
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260461319256667 1.8544e-07  
a 2.548646075000377 1.8323e-08 au
q 2.227399095599047 4.7182e-07 au
i 6.078140407086274 5.6245e-06 deg
node 24.65167273937856 7.8621e-05 deg
peri 109.7696645756239 8.2227e-05 deg
M 147.6378659085543 2.2145e-05 deg
tp 2458591.022075197650
(2019-Apr-17.52207520)
9.0271e-05 TDB
period 1486.15026083314
4.07
1.6026e-05
4.388e-08
d
yr
n .2422366092363925 2.6122e-09 deg/d
Q 2.869893054401707 2.0632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      6800 days (18.62 yr)  
   first obs. used      2001-10-14  
   last obs. used      2020-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63714  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:26:11  

Additional Information
 Earth MOID = 1.2498 au 
 Jupiter MOID = 2.16894 au 
 T_jup = 3.422 
[ 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 16.77   n/a E2021B55  

152216 (2005 RH21)          Discovered 2005-Sep-03 by NEAT at Palomar
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

Alternate Designations
 2005 RH21 = 2001 TP247 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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