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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736757905528535 7.4379e-08  
a 3.73033496797338 5.9071e-08 AU
q 3.08246609338365 3.0297e-07 AU
i 1.767818355048848 7.0518e-06 deg
node 323.6146823033359 0.00020374 deg
peri 239.2073488116088 0.0002044 deg
M 19.43080299614838 2.0432e-05 deg
tp 2456858.460733243953
(2014-Jul-19.96073324)
0.00014676 JED
period 2631.601794445281
7.20
6.2508e-05
1.711e-07
d
yr
n .1367988123278677 3.2494e-09 deg/d
Q 4.37820384256311 6.933e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1320  
   data-arc span      13824 days (37.85 yr)  
   first obs. used      1977-03-25  
   last obs. used      2015-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48006  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:09:00  

Additional Information
 Earth MOID = 2.0812 AU 
 T_jup = 3.062 
[ 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-Feb); 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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