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90901 (1997 EJ5)
Classification: Main-belt Asteroid          SPK-ID: 2090901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397680071789331 3.7548e-08  
a 3.089983935313899 1.973e-08 au
q 2.658103038460158 1.2075e-07 au
i .9187611299547702 4.7325e-06 deg
node 10.23331035113085 0.00025007 deg
peri 289.2757092579107 0.0002507 deg
M 352.4866834564237 1.6408e-05 deg
tp 2459041.905872923373
(2020-Jul-11.40587292)
9.0413e-05 TDB
period 1983.959302920443
5.43
1.9002e-05
5.202e-08
d
yr
n .1814553350313537 1.7379e-09 deg/d
Q 3.52186483216764 2.2488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      8556 days (23.43 yr)  
   first obs. used      1997-03-04  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:14:23  

Additional Information
 Earth MOID = 1.64262 au 
 Jupiter MOID = 1.69006 au 
 T_jup = 3.210 
[ 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 15.1   n/a MPO474787  
diameter diameter 5.683 km 0.428 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90901 (1997 EJ5)          Discovered 1997-Mar-04 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 EJ5 = 1999 TJ282 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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