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19246 (1994 EL7)
Classification: Main-belt Asteroid          SPK-ID: 2019246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173842255665598 3.7382e-08  
a 2.37055961392688 7.5686e-09 au
q 1.958456183452062 8.8336e-08 au
i 3.019892959318354 4.4721e-06 deg
node 30.8412791928752 6.3666e-05 deg
peri 138.1400900105721 6.4683e-05 deg
M 76.62045799483711 1.132e-05 deg
tp 2458716.762334209759
(2019-Aug-21.26233421)
4.1435e-05 TDB
period 1333.136897868314
3.65
6.3846e-06
1.748e-08
d
yr
n .2700397840429142 1.2933e-09 deg/d
Q 2.782663044401698 8.8844e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1776  
   data-arc span      13446 days (36.81 yr)  
   first obs. used      1983-03-14  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48027  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:00:41  

Additional Information
 Earth MOID = .96588 au 
 Jupiter MOID = 2.18609 au 
 T_jup = 3.523 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO365483  
diameter diameter 3.288 km 0.740 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.05 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.]
geometric albedo albedo 0.341   0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19246 (1994 EL7)          Discovered 1994-Mar-14 by Hirasawa, M., Suzuki, S. at Nyukasa
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 EL7 = 1983 EG3 = 1999 TQ88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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