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85493 (1997 SF19)
Classification: Main-belt Asteroid          SPK-ID: 2085493
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495178913854295 3.6379e-08  
a 2.352889276755153 1.0676e-08 au
q 2.001090233431334 8.6658e-08 au
i 3.715856016926281 5.1277e-06 deg
node 337.8233068946259 8.3463e-05 deg
peri 305.6417855423053 8.6166e-05 deg
M 162.9079768001296 2.1828e-05 deg
tp 2458403.958706108640
(2018-Oct-12.45870611)
7.936e-05 TDB
period 1318.258749627531
3.61
8.9721e-06
2.456e-08
d
yr
n .2730875104009107 1.8586e-09 deg/d
Q 2.704688320078971 1.2272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      10691 days (29.27 yr)  
   first obs. used      1990-10-12  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:11  

Additional Information
 Earth MOID = .987475 au 
 Jupiter MOID = 2.44359 au 
 T_jup = 3.538 
[ show covariance matrix ]

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 16.2   n/a MPO449531  

85493 (1997 SF19)          Discovered 1997-Sep-28 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 SF19 = 2000 JE53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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