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21017 (1988 VP)
Classification: Main-belt Asteroid          SPK-ID: 2021017
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06618754692551589 2.2139e-08  
a 2.537265274245829 8.6153e-09 au
q 2.369329909844201 5.8183e-08 au
i 14.36360908438414 7.9241e-07 deg
node 54.32769910930418 1.4101e-06 deg
peri 346.8304571954792 1.0672e-05 deg
M 36.95141953892241 1.1582e-05 deg
tp 2459244.977939823817
(2021-Jan-30.47793982)
4.7464e-05 TDB
period 1476.206931805915
4.04
7.5187e-06
2.059e-08
d
yr
n .2438682492566234 1.2421e-09 deg/d
Q 2.705200638647457 9.1855e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2695  
   data-arc span      24846 days (68.02 yr)  
   first obs. used      1953-03-10  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36045  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:29:23  

Additional Information
 Earth MOID = 1.38004 au 
 Jupiter MOID = 2.60542 au 
 T_jup = 3.401 
[ 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 13.18   n/a E2021B10  
diameter diameter 6.747 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.5745 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 0.294   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21017 (1988 VP)          Discovered 1988-Nov-03 by Arai, M., Mori, H. at Yorii
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1988 VP = 1984 WO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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