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8497 (1990 RE7)
Classification: Main-belt Asteroid          SPK-ID: 2008497
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1094408982976834 6.429e-08  
a 2.984567376708189 3.0733e-08 au
q 2.657933641971284 1.9307e-07 au
i 10.49739448240564 7.6604e-06 deg
node 358.5015272466015 3.5072e-05 deg
peri 64.04773970175582 5.1729e-05 deg
M 301.9523818107259 3.8062e-05 deg
tp 2457904.170365301130
(2017-May-30.67036530)
0.00020127 JED
period 1883.304344235897
5.16
2.909e-05
7.964e-08
d
yr
n .1911533847950958 2.9526e-09 deg/d
Q 3.311201111445094 3.4097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      12196 days (33.39 yr)  
   first obs. used      1982-01-26  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5235  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:59:32  

Additional Information
 Earth MOID = 1.6885 au 
 Jupiter MOID = 2.06485 au 
 T_jup = 3.224 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO263425  
rotation period rot_per 4.40 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Polishook, D. (2012) Minor Planet Bul. 39, 88-89.]

8497 (1990 RE7)          Discovered 1990-Sep-13 by Debehogne, H. at La Silla
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RE7 = 1982 BF5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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