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JPL Small-Body Database Browser
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359394 (2010 HE55)
Classification: Main-belt Asteroid          SPK-ID: 2359394
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3537543831957922 4.5872e-08  
a 2.68087795182057 2.299e-08 au
q 1.732505625551086 1.1263e-07 au
i 8.253658030446122 5.5139e-06 deg
node 162.6529465060509 5.4497e-05 deg
peri 159.1236187511775 5.5919e-05 deg
M 86.34873709033617 1.5394e-05 deg
tp 2458615.937014543607
(2019-May-12.43701454)
6.507e-05 TDB
period 1603.297042080254
4.39
2.0624e-05
5.647e-08
d
yr
n .2245373069065887 2.8883e-09 deg/d
Q 3.629250278090055 3.1123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      320  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2001-06-21  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57989  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:43:33  

Additional Information
 Earth MOID = .723276 au 
 Jupiter MOID = 1.75076 au 
 T_jup = 3.270 
[ 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 16.5   n/a MPO440609  
diameter diameter 1.205 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

359394 (2010 HE55)          Discovered 2010-Apr-25 by WISE at WISE
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2010 HE55 = 2010 NO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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