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65284 (2002 HE1)
Classification: Main-belt Asteroid          SPK-ID: 2065284
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02025323436526202 6.395e-08  
a 2.697002446664662 1.8909e-08 au
q 2.642379424028678 1.6686e-07 au
i 4.010608356990926 5.2641e-06 deg
node 172.1436666384145 5.6901e-05 deg
peri 183.0485950370711 0.00011485 deg
M 142.1448614258464 9.9276e-05 deg
tp 2457961.723248867281
(2017-Jul-27.22324887)
0.00044695 TDB
period 1617.783633548676
4.43
1.7014e-05
4.658e-08
d
yr
n .2225266670613579 2.3403e-09 deg/d
Q 2.751625469300646 1.9292e-08 au
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      15210 days (41.64 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:04:59  

Additional Information
 Earth MOID = 1.63512 au 
 Jupiter MOID = 2.31041 au 
 T_jup = 3.365 
[ 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 15.0   n/a MPO468575  
diameter diameter 4.569 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65284 (2002 HE1)          Discovered 2002-Apr-16 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 HE1 = 1977 RV19 = 1997 EW8 = 1999 RS77 = 2000 YO75 = 2002 FR9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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