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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3105239248935578 5.0678e-08  
a 2.70645999453477 3.2617e-08 au
q 1.866039414464436 1.3315e-07 au
i 12.80441881636751 1.2533e-05 deg
node 131.0874546373503 2.7729e-05 deg
peri 271.9059117483727 3.9343e-05 deg
M 326.5517380057373 3.0562e-05 deg
tp 2459151.602587164644
(2020-Oct-29.10258716)
0.00014026 TDB
period 1626.300684579734
4.45
2.9399e-05
8.049e-08
d
yr
n .22136127926001 4.0016e-09 deg/d
Q 3.546880574605104 4.2745e-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 = .925984 au 
 Jupiter MOID = 2.06873 au 
 T_jup = 3.260 
[ 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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