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43857 (1993 VP2)
Classification: Main-belt Asteroid          SPK-ID: 2043857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822316325682671 1.7472e-08  
a 2.779000494054087 1.3863e-08 au
q 2.27257869711459 5.0341e-08 au
i 22.64375175696318 1.3565e-06 deg
node 231.7999470862596 1.1526e-06 deg
peri 120.6590116717558 8.9659e-06 deg
M 34.39251864192114 9.5803e-06 deg
tp 2459234.843622196711
(2021-Jan-20.34362220)
4.4597e-05 TDB
period 1692.120795661891
4.63
1.2662e-05
3.467e-08
d
yr
n .2127507686938994 1.5919e-09 deg/d
Q 3.285422290993584 1.6389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1805  
   data-arc span      9955 days (27.26 yr)  
   first obs. used      1993-10-18  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:18  

Additional Information
 Earth MOID = 1.34691 au 
 Jupiter MOID = 2.39927 au 
 T_jup = 3.199 
[ 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 13.17   n/a MPCxxxxx  
diameter diameter 13.236 km 0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 545.192 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.044   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43857 (1993 VP2)          Discovered 1993-Nov-15 by Seki, T. at Geisei
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 VP2 = 2001 HF38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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