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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440095546235713 3.3713e-08  
a 2.378270053170121 1.028e-08 au
q 2.035776442038515 7.9483e-08 au
i .7064572130434381 4.5558e-06 deg
node 210.9267164505521 0.00033751 deg
peri 24.84745766538812 0.00033797 deg
M 80.42810040183379 1.8111e-05 deg
tp 2458701.207738063666
(2019-Aug-05.70773806)
6.6838e-05 TDB
period 1339.646389244122
3.67
8.6862e-06
2.378e-08
d
yr
n .2687276305825192 1.7424e-09 deg/d
Q 2.720763664301728 1.1761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      8617 days (23.59 yr)  
   first obs. used      1997-04-03  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:28:10  

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 16.92   n/a E2021B55  

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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