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65965 (1998 HR7)
Classification: Main-belt Asteroid          SPK-ID: 2065965
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .336643807395375 3.901e-08  
a 2.751901446510762 1.6016e-08 au
q 1.825490865980539 1.0719e-07 au
i 29.89011727240953 6.8871e-06 deg
node 209.037577242014 9.7357e-06 deg
peri 72.99235053398226 1.4545e-05 deg
M 188.7000684303677 1.2478e-05 deg
tp 2459393.918696791871
(2021-Jun-28.41869679)
6.2695e-05 TDB
period 1667.43050173938
4.57
1.4557e-05
3.985e-08
d
yr
n .2159010523224002 1.8848e-09 deg/d
Q 3.678312027040985 2.1408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      988  
   data-arc span      7604 days (20.82 yr)  
   first obs. used      1998-03-31  
   last obs. used      2019-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52442  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:36:01  

Additional Information
 Earth MOID = .996933 au 
 Jupiter MOID = 2.00757 au 
 T_jup = 3.078 
[ 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 13.9   n/a MPO366007  
diameter diameter 6.670 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.144   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65965 (1998 HR7)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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