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70331 (1999 RW165)
Classification: Main-belt Asteroid          SPK-ID: 2070331
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106146202836885 9.5504e-08  
a 2.542539073358397 1.2854e-08 au
q 2.272658205156991 2.4628e-07 au
i 3.308077269502738 7.6328e-06 deg
node 156.6735018374933 6.9974e-05 deg
peri 177.3762308139091 7.3707e-05 deg
M 99.5986951692549 2.0795e-05 deg
tp 2458790.814089260977
(2019-Nov-03.31408926)
8.4955e-05 TDB
period 1480.811848141319
4.05
1.1229e-05
3.074e-08
d
yr
n .2431098862774928 1.8436e-09 deg/d
Q 2.812419941559803 1.4218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      10687 days (29.26 yr)  
   first obs. used      1991-10-03  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:49:02  

Additional Information
 Earth MOID = 1.26059 au 
 Jupiter MOID = 2.50317 au 
 T_jup = 3.434 
[ 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 16.60   n/a MPCxxxxx  

70331 (1999 RW165)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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