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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2764217833323452 4.0643e-08  
a 2.388435154230555 9.9125e-09 au
q 1.72821964952448 9.7737e-08 au
i 23.8060586615347 5.2516e-06 deg
node 194.7489475293049 8.2674e-06 deg
peri 225.7296423481459 1.1316e-05 deg
M 298.8647274866307 6.073e-06 deg
tp 2458829.459127072027
(2019-Dec-11.95912707)
2.2458e-05 TDB
period 1348.244349902989
3.69
8.3932e-06
2.298e-08
d
yr
n .2670139133354449 1.6622e-09 deg/d
Q 3.04865065893663 1.2652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      13536 days (37.06 yr)  
   first obs. used      1982-11-06  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47423  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:15:31  

Additional Information
 Earth MOID = .79255 au 
 Jupiter MOID = 2.52822 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457417.5 (2016-Jan-30.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2749737357195435 4.0482e-08  
q 1.732299914385353 9.7264e-08 au
tp 2457478.918722740967
(2016-Mar-31.41872274)
2.5735e-05 TDB
node 194.7962679269879 8.2525e-06 deg
peri 225.3846458391882 1.138e-05 deg
i 23.82022444886125 5.2527e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      13536 days (37.06 yr)  
   first obs. used      1982-11-06  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47423  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:15:31  

Additional Information
 Jupiter MOID = 2.52822 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.638820527542565E-15 -3.926894919646859E-15 -3.232136845302769E-13 1.092661280829591E-14 -9.109784084566988E-14 -6.269517450512431E-15
q -3.926894919646859E-15 9.460369724222501E-15 6.84868513139083E-13 -2.552753398131746E-14 1.94595390948766E-13 1.608829768343714E-14
tp -3.232136845302769E-13 6.84868513139083E-13 6.623026358007736E-10 -4.253584149228266E-12 2.074794914633649E-10 9.889150848014371E-13
node 1.092661280829591E-14 -2.552753398131746E-14 -4.253584149228266E-12 6.810337093743422E-11 -6.317480267900728E-11 1.141889585431866E-11
peri -9.109784084566988E-14 1.94595390948766E-13 2.074794914633649E-10 -6.317480267900728E-11 1.295043999153381E-10 -9.929322003229767E-12
i -6.269517450512431E-15 1.608829768343714E-14 9.889150848014371E-13 1.141889585431866E-11 -9.929322003229767E-12 2.759093022699434E-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 14.9   n/a MPO449530  

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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