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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2222470571963331 3.6148e-08  
a 2.595904521125424 1.08e-08 au
q 2.018972380542642 9.2027e-08 au
i 4.41657804632099 3.9117e-06 deg
node 150.9233152901448 4.976e-05 deg
peri 311.2916625363133 5.0403e-05 deg
M 158.9543637031215 8.4354e-06 deg
tp 2458525.969715189855
(2019-Feb-11.46971519)
3.4239e-05 TDB
period 1527.676855636293
4.18
9.5333e-06
2.61e-08
d
yr
n .2356519303619719 1.4706e-09 deg/d
Q 3.172836661708206 1.32e-08 au
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      6876 days (18.83 yr)  
   first obs. used      2001-08-27  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52575  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:31:44  

Additional Information
 Earth MOID = 1.03884 au 
 Jupiter MOID = 1.99765 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 15.82   n/a E2021B55  

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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