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78509 (2002 RM85)
Classification: Main-belt Asteroid          SPK-ID: 2078509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102402866195833 5.1292e-08  
a 2.622649814376498 1.6474e-08 au
q 2.333528147136836 1.3988e-07 au
i 9.548651799376572 5.5785e-06 deg
node 359.306792747206 2.2638e-05 deg
peri 196.562122173849 3.1518e-05 deg
M 225.3800124936349 2.6018e-05 deg
tp 2459580.617452109151
(2022-Jan-01.11745211)
0.00011526 TDB
period 1551.3467697315
4.25
1.4617e-05
4.002e-08
d
yr
n .2320564344632677 2.1864e-09 deg/d
Q 2.91177148161616 1.829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      8051 days (22.04 yr)  
   first obs. used      1998-10-29  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57078  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:12:47  

Additional Information
 Earth MOID = 1.33465 au 
 Jupiter MOID = 2.05508 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457126.5 (2015-Apr-14.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099099202226204 5.1338e-08  
q 2.334775449450625 1.3995e-07 au
tp 2456479.805552573927
(2013-Jul-06.30555257)
0.00010158 TDB
node 359.3463908385959 2.2612e-05 deg
peri 196.9823261365499 3.1592e-05 deg
i 9.554401412127714 5.581e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      8051 days (22.04 yr)  
   first obs. used      1998-10-29  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57078  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:12:47  

Additional Information
 Jupiter MOID = 2.05508 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.635627723502636E-15 -7.149269517357108E-15 -2.205791159905286E-12 -1.827403150069766E-14 -4.610799745626813E-13 2.155893949177454E-15
q -7.149269517357108E-15 1.958717217923681E-14 6.34972917609534E-12 4.786551849314589E-14 1.344424238430164E-12 -5.017678165223361E-15
tp -2.205791159905286E-12 6.34972917609534E-12 1.031945228847192E-8 1.831940177034562E-11 2.249259600017277E-9 -1.675612806541371E-12
node -1.827403150069766E-14 4.786551849314589E-14 1.831940177034562E-11 5.112895408632692E-10 -5.000809550244069E-10 1.328106233703296E-13
peri -4.610799745626813E-13 1.344424238430164E-12 2.249259600017277E-9 -5.000809550244069E-10 9.980236257808405E-10 -3.789060068675214E-13
i 2.155893949177454E-15 -5.017678165223361E-15 -1.675612806541371E-12 1.328106233703296E-13 -3.789060068675214E-13 3.114760786545375E-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 MPO502630  
diameter diameter 3.141 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78509 (2002 RM85)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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