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46620 (1994 EL1)
Classification: Main-belt Asteroid          SPK-ID: 2046620
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1387114511676849 3.4361e-08  
a 2.188289572747826 5.9018e-09 au
q 1.884748750536862 7.5851e-08 au
i 4.933680220435157 2.8512e-06 deg
node 112.6636026058881 4.8601e-05 deg
peri 317.5605675237773 5.0368e-05 deg
M 131.8606871827477 1.3647e-05 deg
tp 2458567.419681783543
(2019-Mar-24.91968178)
4.4178e-05 TDB
period 1182.3760203968
3.24
4.7833e-06
1.31e-08
d
yr
n .3044716687329176 1.2317e-09 deg/d
Q 2.491830394958789 6.7204e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2109  
   data-arc span      9593 days (26.26 yr)  
   first obs. used      1994-03-06  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:41:27  

Additional Information
 Earth MOID = .902761 au 
 Jupiter MOID = 2.75582 au 
 T_jup = 3.658 
[ 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 14.2   n/a MPO452807  
diameter diameter 3.861 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; 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.]
geometric albedo albedo 0.226   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46620 (1994 EL1)          Discovered 1994-Mar-06 by Kobayashi, T. at Oizumi
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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