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JPL Small-Body Database Browser
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46771 (1998 HM7)
Classification: Mars-crossing Asteroid          SPK-ID: 2046771
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2995293674894776 5.5345e-08  
a 2.307553582320614 1.3653e-08 au
q 1.616373517360042 1.3022e-07 au
i 23.56104700564051 5.8404e-06 deg
node 56.48717118971694 1.2941e-05 deg
peri 280.6432950714569 1.5623e-05 deg
M 265.812755598596 1.3646e-05 deg
tp 2458935.477555258255
(2020-Mar-26.97755526)
5.024e-05 TDB
period 1280.342371829432
3.51
1.1363e-05
3.111e-08
d
yr
n .2811747919313253 2.4954e-09 deg/d
Q 2.998733647281186 1.7742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      12764 days (34.95 yr)  
   first obs. used      1984-05-30  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51873  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:34:13  

Additional Information
 Earth MOID = .775506 au 
 Jupiter MOID = 2.83733 au 
 T_jup = 3.420 
[ 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 14.6   n/a MPO385115  

46771 (1998 HM7)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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