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295536 (2008 RD138)
Classification: Main-belt Asteroid          SPK-ID: 2295536
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119820806814732 6.4984e-08  
a 3.040145281376328 3.8758e-08 au
q 2.699703487193844 1.9164e-07 au
i 8.759309857144039 5.8826e-06 deg
node 271.7931640311089 3.6919e-05 deg
peri 30.60819813477821 4.5474e-05 deg
M 54.04216057257036 2.5323e-05 deg
tp 2458309.850127587336
(2018-Jul-10.35012759)
0.00013673 TDB
period 1936.154161121145
5.30
3.7025e-05
1.014e-07
d
yr
n .1859356074164772 3.5557e-09 deg/d
Q 3.380587075558812 4.3098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      5893 days (16.13 yr)  
   first obs. used      2003-10-16  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5274  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:31:03  

Additional Information
 Earth MOID = 1.68766 au 
 Jupiter MOID = 1.82132 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148737865755169 6.5373e-08  
q 2.690164381633079 1.9383e-07 au
tp 2456370.703268054983
(2013-Mar-19.20326805)
0.00014062 TDB
node 272.0839068790594 3.6939e-05 deg
peri 29.9484523958844 4.4946e-05 deg
i 8.759123717816074 5.8819e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      5893 days (16.13 yr)  
   first obs. used      2003-10-16  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5274  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:31:03  

Additional Information
 Jupiter MOID = 1.82132 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.273585167096053E-15 -1.248580868956753E-14 -3.014364293295305E-13 7.867787676001762E-15 -2.111451752701979E-13 1.029771944012356E-15
q -1.248580868956753E-14 3.757091495647788E-14 -7.602267124998253E-13 -2.070707049271436E-14 4.265277861342181E-13 3.712656025815987E-16
tp -3.014364293295305E-13 -7.602267124998253E-13 1.977484442813085E-8 -4.429338832965075E-11 3.595211227346501E-9 -1.127139905023543E-11
node 7.867787676001762E-15 -2.070707049271436E-14 -4.429338832965075E-11 1.364470452149643E-9 -1.356383648321647E-9 -3.043689921814612E-12
peri -2.111451752701979E-13 4.265277861342181E-13 3.595211227346501E-9 -1.356383648321647E-9 2.020118759960499E-9 9.721997349539963E-13
i 1.029771944012356E-15 3.712656025815987E-16 -1.127139905023543E-11 -3.043689921814612E-12 9.721997349539963E-13 3.459726403118835E-11

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 15.5   n/a MPO455184  

295536 (2008 RD138)          Discovered 2008-Sep-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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