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JPL Small-Body Database Browser
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91116 (1998 HD75)
Classification: Main-belt Asteroid          SPK-ID: 2091116
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04106919511625155 5.7367e-08  
a 2.779496549421748 2.1919e-08 au
q 2.665344863308598 1.5719e-07 au
i 2.121342861079653 5.4616e-06 deg
node 140.8104619799384 0.0001325 deg
peri 199.9767927936255 0.00014451 deg
M 152.2143972630423 5.7057e-05 deg
tp 2458284.849684225235
(2018-Jun-15.34968423)
0.00026877 TDB
period 1692.573884674632
4.63
2.0022e-05
5.482e-08
d
yr
n .2126938169492103 2.516e-09 deg/d
Q 2.893648235534898 2.282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:23:42  

Additional Information
 Earth MOID = 1.65632 au 
 Jupiter MOID = 2.26213 au 
 T_jup = 3.332 
[ 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 15.8   n/a MPO412705  

91116 (1998 HD75)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 HD75 = 2007 HA94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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