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JPL Small-Body Database Browser
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74037 (1998 HB55)
Classification: Main-belt Asteroid          SPK-ID: 2074037
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09400278772036531 3.7641e-08  
a 2.230701583988722 9.2091e-09 au
q 2.021009416521548 8.485e-08 au
i 2.364261874900486 4.6572e-06 deg
node 334.7157533250223 0.00010086 deg
peri 141.9841226505268 0.00010471 deg
M 190.6189189094032 2.9725e-05 deg
tp 2459173.062684016958
(2020-Nov-19.56268402)
0.00010213 TDB
period 1216.916109632435
3.33
7.5358e-06
2.063e-08
d
yr
n .2958297594636468 1.8319e-09 deg/d
Q 2.440393751455896 1.0075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      7890 days (21.60 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:49:27  

Additional Information
 Earth MOID = 1.03814 au 
 Jupiter MOID = 2.61629 au 
 T_jup = 3.635 
[ 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 15.9   n/a MPO432293  

74037 (1998 HB55)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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