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85245 (1993 RM2)
Classification: Main-belt Asteroid          SPK-ID: 2085245
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2764217818420482 4.0351e-08  
a 2.388435154186368 9.848e-09 au
q 1.728219653051985 9.6985e-08 au
i 23.80605808576583 5.1093e-06 deg
node 194.7489481746848 8.1505e-06 deg
peri 225.7296418083491 1.1215e-05 deg
M 298.8647274429793 5.8531e-06 deg
tp 2458829.459127229153
(2019-Dec-11.95912723)
2.1578e-05 TDB
period 1348.244349865575
3.69
8.3386e-06
2.283e-08
d
yr
n .2670139133428546 1.6514e-09 deg/d
Q 3.048650655320751 1.257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      13545 days (37.08 yr)  
   first obs. used      1982-11-06  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:01:56  

Additional Information
 Earth MOID = .79255 au 
 Jupiter MOID = 2.52822 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457485.5 (2016-Apr-07.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2749389268865136 4.019e-08  
q 1.732302033189862 9.65e-08 au
tp 2457478.919218879742
(2016-Mar-31.41921888)
2.5182e-05 TDB
node 194.7963752589462 8.1358e-06 deg
peri 225.3845631800897 1.1279e-05 deg
i 23.82031116823074 5.11e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      13545 days (37.08 yr)  
   first obs. used      1982-11-06  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:01:56  

Additional Information
 Jupiter MOID = 2.52822 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.615268138540747E-15 -3.8679190995494E-15 -3.049451110783798E-13 1.606484228045705E-14 -9.187241367699205E-14 -1.108157608000876E-14
q -3.8679190995494E-15 9.312308669815305E-15 6.368044632908486E-13 -3.782172124899895E-14 1.955459058482939E-13 2.764451562427241E-14
tp -3.049451110783798E-13 6.368044632908486E-13 6.341560916718047E-10 -5.328342787104263E-12 2.026469920515561E-10 2.12669869705952E-12
node 1.606484228045705E-14 -3.782172124899895E-14 -5.328342787104263E-12 6.619124059905361E-11 -6.170682888064301E-11 1.302988069160285E-11
peri -9.187241367699205E-14 1.955459058482939E-13 2.026469920515561E-10 -6.170682888064301E-11 1.272182808581619E-10 -1.111941442584783E-11
i -1.108157608000876E-14 2.764451562427241E-14 2.12669869705952E-12 1.302988069160285E-11 -1.111941442584783E-11 2.611183166301035E-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 15.0   n/a MPO502664  

85245 (1993 RM2)          Discovered 1993-Sep-14 by Helin, E. F. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1993 RM2 = 2002 FY39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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