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136566 (1978 VE4)
Classification: Main-belt Asteroid          SPK-ID: 2136566
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 .1668228390239 5.956e-08  
a 2.291336431030054 1.1051e-08 au
q 1.90908918244673 1.357e-07 au
i 3.914554117113067 6.1519e-06 deg
node 52.4985298565045 5.6315e-05 deg
peri 328.2974521682424 5.7425e-05 deg
M 21.68955355679267 1.0922e-05 deg
tp 2458924.172712413286
(2020-Mar-15.67271241)
3.8271e-05 TDB
period 1266.869023341966
3.47
9.1647e-06
2.509e-08
d
yr
n .2841651294388189 2.0557e-09 deg/d
Q 2.673583679613378 1.2894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      14404 days (39.44 yr)  
   first obs. used      1978-11-06  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57427  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 05:25:07  

Additional Information
 Earth MOID = .913309 au 
 Jupiter MOID = 2.78312 au 
 T_jup = 3.576 
[ 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 16.8   n/a MPO436672  
diameter diameter 2.172 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.33 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.071   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136566 (1978 VE4)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1978 VE4 = 2002 RE54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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