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85292 (1994 RA18)
Classification: Main-belt Asteroid          SPK-ID: 2085292
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1105176424983638 3.0132e-08  
a 2.218904437507039 7.5605e-09 au
q 1.973676350144603 6.4963e-08 au
i 4.404528974786301 4.1621e-06 deg
node 315.6160926092468 4.7813e-05 deg
peri 143.5310676479058 5.2324e-05 deg
M 178.8195926687157 2.2062e-05 deg
tp 2458400.820882977192
(2018-Oct-09.32088298)
7.2845e-05 TDB
period 1207.27532652511
3.31
6.1703e-06
1.689e-08
d
yr
n .2981921290781157 1.5241e-09 deg/d
Q 2.464132524869475 8.3961e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      10475 days (28.68 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:16:15  

Additional Information
 Earth MOID = .992529 au 
 Jupiter MOID = 2.65276 au 
 T_jup = 3.639 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456845.5 (2014-Jul-07.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108235462062094 3.0223e-08  
q 1.972202747572843 6.5204e-08 au
tp 2457194.780628815698
(2015-Jun-21.28062882)
7.0546e-05 TDB
node 315.6711608993432 4.7807e-05 deg
peri 143.4945690121512 5.2265e-05 deg
i 4.40558939963021 4.1623e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      10475 days (28.68 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:16:15  

Additional Information
 Jupiter MOID = 2.65276 au 
 T_jup = 3.639 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.134484441983824E-16 -1.96126028257848E-15 5.763216262388715E-13 -2.800430906510262E-15 1.675021048228465E-13 -3.713255823446683E-17
q -1.96126028257848E-15 4.25152490309741E-15 -1.153024285251218E-12 6.132731205511445E-15 -3.381139434355639E-13 1.2595921182368E-16
tp 5.763216262388715E-13 -1.153024285251218E-12 4.976708187928389E-9 4.334272674919449E-12 1.50150440635224E-9 2.421909396365312E-13
node -2.800430906510262E-15 6.132731205511445E-15 4.334272674919449E-12 2.285492099214541E-9 -2.276939697986259E-9 7.090224983595892E-11
peri 1.675021048228465E-13 -3.381139434355639E-13 1.50150440635224E-9 -2.276939697986259E-9 2.731646879991613E-9 -7.061566316985998E-11
i -3.713255823446683E-17 1.2595921182368E-16 2.421909396365312E-13 7.090224983595892E-11 -7.061566316985998E-11 1.732496625612188E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO474739  

85292 (1994 RA18)          Discovered 1994-Sep-03 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1994 RA18 = 1999 BR19 = 2001 TN112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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