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46639 (1995 BN4)
Classification: Main-belt Asteroid          SPK-ID: 2046639
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1674981045688448 3.0673e-08  
a 2.684795746661173 1.2915e-08 au
q 2.23509754794093 8.2985e-08 au
i 10.77430176536942 5.6631e-06 deg
node 333.743799489458 1.7692e-05 deg
peri 108.9217339285687 2.5641e-05 deg
M 320.8449631815205 1.9174e-05 deg
tp 2459175.263381573420
(2020-Nov-21.76338157)
8.6267e-05 TDB
period 1606.812877181057
4.40
1.1594e-05
3.174e-08
d
yr
n .2240460013188175 1.6166e-09 deg/d
Q 3.134493945381416 1.5078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1476  
   data-arc span      9119 days (24.97 yr)  
   first obs. used      1995-01-28  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:32:01  

Additional Information
 Earth MOID = 1.27819 au 
 Jupiter MOID = 2.13954 au 
 T_jup = 3.329 
[ 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 13.7   n/a MPO493181  
diameter diameter 10.161 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.214 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.068   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46639 (1995 BN4)          Discovered 1995-Jan-28 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 BN4 = 1998 XY73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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