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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174206702329438 3.6436e-08  
a 2.371253185630317 7.6705e-09 au
q 1.958164987773485 8.6192e-08 au
i 3.019467589107331 4.3722e-06 deg
node 30.77895738375322 6.3205e-05 deg
peri 138.3455910055989 6.4196e-05 deg
M 130.4108403208695 1.1319e-05 deg
tp 2458717.356089083855
(2019-Aug-21.85608908)
4.1119e-05 TDB
period 1333.722008859552
3.65
6.4715e-06
1.772e-08
d
yr
n .2699213161428079 1.3097e-09 deg/d
Q 2.784341383487149 9.0068e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1837  
   data-arc span      13698 days (37.50 yr)  
   first obs. used      1983-03-14  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47982  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:40  

Additional Information
 Earth MOID = .96519 au 
 Jupiter MOID = 2.1833 au 
 T_jup = 3.522 
[ 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 14.42   n/a E2021B10  
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. 2020-October); 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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