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78417 (2002 QE37)
Classification: Main-belt Asteroid          SPK-ID: 2078417
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196034262076532 5.0087e-08  
a 2.375299578852613 1.1553e-08 au
q 2.091205610952244 1.1674e-07 au
i 2.220019245116773 4.9984e-06 deg
node 127.1423292585118 0.00012721 deg
peri 40.66511219939771 0.00012854 deg
M 128.2479359429089 1.898e-05 deg
tp 2458524.152491618013
(2019-Feb-09.65249162)
6.96e-05 TDB
period 1337.137332906892
3.66
9.7553e-06
2.671e-08
d
yr
n .269231881528109 1.9642e-09 deg/d
Q 2.659393546752981 1.2935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      7601 days (20.81 yr)  
   first obs. used      1999-12-17  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:56  

Additional Information
 Earth MOID = 1.09845 au 
 Jupiter MOID = 2.30852 au 
 T_jup = 3.531 
[ 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 16.9   n/a MPO324992  
rotation period rot_per 3.75 h n/a LCDB (Rev. 2019-August); 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.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

78417 (2002 QE37)          Discovered 2002-Aug-30 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 QE37 = 2001 KP67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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