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100580 (1997 HM16)
Classification: Main-belt Asteroid          SPK-ID: 2100580
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440095854098197 3.7116e-08  
a 2.378270051811233 1.1152e-08 au
q 2.035776367657307 8.9246e-08 au
i .7064571310485163 4.6758e-06 deg
node 210.9265810520379 0.00038153 deg
peri 24.84757625228427 0.00038198 deg
M 80.42811476006953 1.8601e-05 deg
tp 2458701.207684889738
(2019-Aug-05.70768489)
6.8846e-05 TDB
period 1339.646388095957
3.67
9.4228e-06
2.58e-08
d
yr
n .2687276308128363 1.8902e-09 deg/d
Q 2.720763735965159 1.2758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      8084 days (22.13 yr)  
   first obs. used      1997-04-03  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58571  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:20:52  

Additional Information
 Earth MOID = 1.02419 au 
 Jupiter MOID = 2.27633 au 
 T_jup = 3.526 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO432534  

100580 (1997 HM16)          Discovered 1997-Apr-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1997 HM16 = 1998 TW27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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