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56554 (2000 HF85)
Classification: Main-belt Asteroid          SPK-ID: 2056554
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164536810155836 3.1614e-08  
a 2.267040821044388 8.3629e-09 au
q 2.003035572421178 7.4069e-08 au
i 6.427107494106526 4.2059e-06 deg
node 190.5651206578828 3.1179e-05 deg
peri 75.53368092927069 3.6428e-05 deg
M 287.8998678920701 1.9253e-05 deg
tp 2459250.201411278618
(2021-Feb-04.70141128)
6.7113e-05 TDB
period 1246.773139413093
3.41
6.8988e-06
1.889e-08
d
yr
n .2887453929024061 1.5977e-09 deg/d
Q 2.531046069667598 9.3368e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1050  
   data-arc span      9357 days (25.62 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:58:50  

Additional Information
 Earth MOID = .999234 au 
 Jupiter MOID = 2.53729 au 
 T_jup = 3.598 
[ 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 15.6   n/a MPO302371  

56554 (2000 HF85)          Discovered 2000-Apr-29 by Spacewatch at Kitt Peak
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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