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JPL Small-Body Database Browser
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487792 (2015 RH239)
Classification: Main-belt Asteroid          SPK-ID: 2487792
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05651654806300837 6.6221e-08  
a 2.64928973794516 3.1269e-08 au
q 2.499561027137748 1.8868e-07 au
i 14.19472568468796 5.3013e-06 deg
node 94.00014583088051 2.9193e-05 deg
peri 323.7738980061356 6.7327e-05 deg
M 276.7376682302063 6.0093e-05 deg
tp 2458964.782812665187
(2020-Apr-25.28281267)
0.00026517 TDB
period 1575.043717512649
4.31
2.7885e-05
7.634e-08
d
yr
n .2285650842558971 4.0466e-09 deg/d
Q 2.799018448752573 3.3037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      6266 days (17.16 yr)  
   first obs. used      2002-09-05  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:31  

Additional Information
 Earth MOID = 1.52505 au 
 Jupiter MOID = 2.43675 au 
 T_jup = 3.345 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457631.5 (2016-Aug-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05574196811471659 6.6588e-08  
q 2.501970727297935 1.8965e-07 au
tp 2457381.080980381713
(2015-Dec-24.58098038)
0.00025883 TDB
node 94.08841970742695 2.9237e-05 deg
peri 321.9481631146837 6.784e-05 deg
i 14.18284236132506 5.296e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      6266 days (17.16 yr)  
   first obs. used      2002-09-05  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:31  

Additional Information
 Jupiter MOID = 2.43675 au 
 T_jup = 3.345 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.434000736874399E-15 -1.249655221791937E-14 -5.679299890260287E-12 -4.688671788938116E-14 -1.246323423199997E-12 -2.212507756385592E-14
q -1.249655221791937E-14 3.596565488466229E-14 1.705045706772927E-11 1.365675241120327E-13 3.790978979062257E-12 6.619099581472154E-14
tp -5.679299890260287E-12 1.705045706772927E-11 6.699259471879576E-8 1.442709895518221E-10 1.591311770516794E-8 4.30911491938055E-11
node -4.688671788938116E-14 1.365675241120327E-13 1.442709895518221E-10 8.548077013002308E-10 -7.938502012605438E-10 -4.365455519044113E-11
peri -1.246323423199997E-12 3.790978979062257E-12 1.591311770516794E-8 -7.938502012605438E-10 4.602240429996447E-9 5.241536778860345E-11
i -2.212507756385592E-14 6.619099581472154E-14 4.30911491938055E-11 -4.365455519044113E-11 5.241536778860345E-11 2.80471131940482E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO456352  

487792 (2015 RH239)          Discovered 2007-Oct-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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