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37961 (1998 HG71)
Classification: Main-belt Asteroid          SPK-ID: 2037961
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1523995882510867 3.2689e-08  
a 2.532125658983252 1.1513e-08 au
q 2.146230751154193 8.0245e-08 au
i 17.45668213608491 6.6356e-06 deg
node 38.71517657766861 1.5785e-05 deg
peri 230.6646093411642 3.0709e-05 deg
M 128.7731453010816 2.5929e-05 deg
tp 2458474.059720754164
(2018-Dec-21.55972075)
0.00010542 TDB
period 1471.723782822823
4.03
1.0037e-05
2.748e-08
d
yr
n .2446111180655831 1.6683e-09 deg/d
Q 2.918020566812311 1.3268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1032  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1994-05-18  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53566  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:44:32  

Additional Information
 Earth MOID = 1.17069 au 
 Jupiter MOID = 2.21377 au 
 T_jup = 3.370 
[ 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 14.9   n/a MPO250576  
diameter diameter 3.941 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.114   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37961 (1998 HG71)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HG71 = 1999 TF95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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