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5626 (1991 FE)
Classification: Amor [NEO]          SPK-ID: 2005626
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 336 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4542523113763384 2.2989e-08  
a 2.194621779716961 8.1359e-09 AU
q 1.197709763683678 5.1248e-08 AU
i 3.854518871315217 4.4298e-06 deg
node 173.2782151104215 5.1771e-05 deg
peri 231.4191331229893 5.2242e-05 deg
M 128.867379146512 6.709e-06 deg
tp 2456375.412387333462
(2013-Mar-23.91238733)
2.0797e-05 JED
period 1187.511855781353
3.25
6.6035e-06
1.808e-08
d
yr
n .3031548680944571 1.6858e-09 deg/d
Q 3.191533795750244 1.1832e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1815  
   data-arc span      15950 days (43.67 yr)  
   first obs. used      1970-09-08  
   last obs. used      2014-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49622  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-16 05:46:11  

Additional Information
 Earth MOID = .212863 AU 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO240243  
rotation period rot_per 2.4606 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Krugly, Yu.N.; Bel'skaya, I.N.; Shevchenko, V.G.; et al. (2002) Icarus 158, 294-304.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5626 (1991 FE)          Discovered 1991-Mar-18 by Spacewatch at Kitt Peak (691)
Reference: DISCOVERY.DBLast Updated: 2013-09-05

[ show close-approach data ]
Alternate Designations
 1991 FE = 1970 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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