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152562 (1991 RO42)
Classification: Main-belt Asteroid          SPK-ID: 2152562
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140061803400783 3.9137e-08  
a 2.321136818323696 1.2502e-08 au
q 2.05651287561989 9.5402e-08 au
i 4.591045307403016 4.0645e-06 deg
node 276.7939551996868 7.8227e-05 deg
peri 172.2282516796319 8.4553e-05 deg
M 348.2860363613976 3.489e-05 deg
tp 2459042.529179182344
(2020-Jul-12.02917918)
0.00012533 TDB
period 1291.663946760317
3.54
1.0436e-05
2.857e-08
d
yr
n .27871026430902 2.2518e-09 deg/d
Q 2.585760761027503 1.3928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      10370 days (28.39 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:19:51  

Additional Information
 Earth MOID = 1.07312 au 
 Jupiter MOID = 2.57936 au 
 T_jup = 3.565 
[ 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 16.4   n/a MPO453985  

152562 (1991 RO42)          Discovered 1991-Sep-13 by Lowe, A. at Palomar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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Alternate Designations
 1991 RO42 = 2002 YA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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