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153485 (2001 RZ81)
Classification: Main-belt Asteroid          SPK-ID: 2153485
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226960516725958 3.6289e-08  
a 2.594898987143063 1.096e-08 au
q 2.017025228217085 9.2332e-08 au
i 4.416244177040384 3.9255e-06 deg
node 150.9394798361606 4.9826e-05 deg
peri 311.2277903294074 5.0466e-05 deg
M 111.8447369024211 8.3653e-06 deg
tp 2458526.157363527605
(2019-Feb-11.65736353)
3.4426e-05 TDB
period 1526.78931400272
4.18
9.673e-06
2.648e-08
d
yr
n .2357889177624665 1.4939e-09 deg/d
Q 3.17277274606904 1.3401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      6876 days (18.83 yr)  
   first obs. used      2001-08-27  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:27:06  

Additional Information
 Earth MOID = 1.03707 au 
 Jupiter MOID = 1.99811 au 
 T_jup = 3.378 
[ 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 15.8   n/a MPO426961  

153485 (2001 RZ81)          Discovered 2001-Sep-14 by Kusnirak, P. at Ondrejov
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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