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118633 (2000 HM57)
Classification: Main-belt Asteroid          SPK-ID: 2118633
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785310331036801 4.0454e-08  
a 2.41743954571179 1.2164e-08 au
q 1.985851566150173 9.7907e-08 au
i 3.405175819610794 4.6416e-06 deg
node 89.14445447813763 8.4743e-05 deg
peri 187.5734464475749 8.602e-05 deg
M 83.8804562138825 1.5697e-05 deg
tp 2458680.617749103529
(2019-Jul-16.11774910)
5.9572e-05 TDB
period 1372.877730053053
3.76
1.0362e-05
2.837e-08
d
yr
n .2622229147719428 1.9791e-09 deg/d
Q 2.849027525273407 1.4335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      10036 days (27.48 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57067  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:17:35  

Additional Information
 Earth MOID = .969503 au 
 Jupiter MOID = 2.27151 au 
 T_jup = 3.491 
[ 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 15.5   n/a MPO338093  
rotation period rot_per 4.26 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 116-120.]

118633 (2000 HM57)          Discovered 2000-Apr-24 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2000 HM57 = 2001 UF52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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