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JPL Small-Body Database Browser
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437942 (2002 RW138)
Classification: Main-belt Asteroid          SPK-ID: 2437942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3109478084125891 5.0773e-08  
a 2.710093526835032 3.3777e-08 au
q 1.867395884072534 1.3364e-07 au
i 12.78453759062137 1.2516e-05 deg
node 131.1551892382716 2.7793e-05 deg
peri 271.595231150625 3.9234e-05 deg
M 238.4278262425771 2.907e-05 deg
tp 2459150.808887253634
(2020-Oct-28.30888725)
0.00013997 TDB
period 1629.576845492672
4.46
3.0465e-05
8.341e-08
d
yr
n .2209162464450462 4.1301e-09 deg/d
Q 3.552791169597529 4.428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      5297 days (14.50 yr)  
   first obs. used      2002-09-03  
   last obs. used      2017-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63315  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 13:12:23  

Additional Information
 Earth MOID = .926601 au 
 Jupiter MOID = 2.06254 au 
 T_jup = 3.258 
[ 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 17.2   n/a MPO397546  

437942 (2002 RW138)          Discovered 2002-Sep-10 by NEAT at Palomar
Reference: Last Updated: 2015-07-06

Alternate Designations
 2002 RW138 = 2008 AD61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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