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7458 (1984 DE1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2007458
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739433462492272 7.3398e-08  
a 3.732134101731661 5.7912e-08 au
q 3.082954207425602 2.9822e-07 au
i 1.767731426809886 6.9923e-06 deg
node 323.6147094420401 0.00020289 deg
peri 239.3159825619965 0.00020348 deg
M 74.01688564935492 2.0594e-05 deg
tp 2456859.044718638455
(2014-Jul-20.54471864)
0.00014093 JED
period 2633.505849105595
7.21
6.1297e-05
1.678e-07
d
yr
n .1366999052317522 3.1818e-09 deg/d
Q 4.381313996037719 6.7986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1347  
   data-arc span      13968 days (38.24 yr)  
   first obs. used      1977-03-25  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48643  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:33:47  

Additional Information
 Earth MOID = 2.07999 au 
 Jupiter MOID = .619119 au 
 T_jup = 3.061 
[ 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 11.8 mag n/a MPO319178  
rotation period rot_per 16.7 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]

7458 (1984 DE1)          Discovered 1984-Feb-28 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 DE1 = 1977 FL3 = 1977 GQ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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