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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783963719535217 3.9089e-08  
a 2.417847134228758 1.0475e-08 au
q 1.986511977544128 9.3139e-08 au
i 3.405053073829622 4.559e-06 deg
node 89.1461604347474 7.2637e-05 deg
peri 187.6168691440974 7.3904e-05 deg
M 136.2788691207353 1.5394e-05 deg
tp 2458680.662378973622
(2019-Jul-16.16237897)
5.7868e-05 TDB
period 1373.224952459059
3.76
8.9241e-06
2.443e-08
d
yr
n .262156611234992 1.7037e-09 deg/d
Q 2.849182290913389 1.2344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      10551 days (28.89 yr)  
   first obs. used      1992-02-27  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55229  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:09  

Additional Information
 Earth MOID = .968303 au 
 Jupiter MOID = 2.2706 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 15.53   n/a MPCxxxxx  
rotation period rot_per 4.26 h n/a LCDB (Rev. 2020-October); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1990-Jun-28 16:15 00:01 Psych 0.0157777400227039 0.0157746774288144 0.0157808026805387 3.31727973761447 3.31727950644723 2448071.176999780 1.42688031285047 161.393824484254 49.1511932247245 -20.0895273572453 21434.5935030019 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 16:58:12 2021-Apr-13 16:58

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