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52825 (1998 RM28)
Classification: Main-belt Asteroid          SPK-ID: 2052825
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720573662829912 2.9689e-08  
a 2.246204686099889 8.0932e-09 au
q 1.859728623677029 6.6208e-08 au
i 2.765607563315195 4.1196e-06 deg
node 165.7641906107927 7.61e-05 deg
peri 136.982848711323 7.7129e-05 deg
M 194.567508831815 1.3529e-05 deg
tp 2459565.555009022918
(2021-Dec-17.05500902)
4.7125e-05 TDB
period 1229.624252236194
3.37
6.6456e-06
1.819e-08
d
yr
n .2927723646840114 1.5823e-09 deg/d
Q 2.632680748522748 9.4857e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1026  
   data-arc span      7825 days (21.42 yr)  
   first obs. used      1998-08-23  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:25  

Additional Information
 Earth MOID = .845615 au 
 Jupiter MOID = 2.58976 au 
 T_jup = 3.609 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456613.5 (2013-Nov-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723383724369736 2.967e-08  
q 1.858739440947345 6.6161e-08 au
tp 2457106.932797934722
(2015-Mar-25.43279793)
4.4491e-05 TDB
node 165.7936729590525 7.6094e-05 deg
peri 137.0657164722616 7.7121e-05 deg
i 2.765502727082538 4.1208e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1026  
   data-arc span      7825 days (21.42 yr)  
   first obs. used      1998-08-23  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:25  

Additional Information
 Jupiter MOID = 2.58976 au 
 T_jup = 3.609 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.803276824727697E-16 -1.953133934554536E-15 2.926183293823696E-13 -2.561906194605822E-15 6.635045382339553E-14 -5.635257936723453E-16
q -1.953133934554536E-15 4.377260857663287E-15 -6.461910354703289E-13 5.533924187640832E-15 -1.520973840505484E-13 1.285637605042133E-15
tp 2.926183293823696E-13 -6.461910354703289E-13 1.979423125505763E-9 1.11879223585998E-11 5.698002626963689E-10 -7.49339360119494E-13
node -2.561906194605822E-15 5.533924187640832E-15 1.11879223585998E-11 5.790254056561321E-9 -5.779464685353058E-9 1.000734888283169E-10
peri 6.635045382339553E-14 -1.520973840505484E-13 5.698002626963689E-10 -5.779464685353058E-9 5.947675609975675E-9 -1.001632018602371E-10
i -5.635257936723453E-16 1.285637605042133E-15 -7.49339360119494E-13 1.000734888283169E-10 -1.001632018602371E-10 1.698096907411588E-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 15.9   n/a MPO400513  

52825 (1998 RM28)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 RM28 = 2000 AJ131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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