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17973 (1999 JP51)
Classification: Main-belt Asteroid          SPK-ID: 2017973
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142483032049911 3.5418e-08  
a 2.787127901806559 1.2113e-08 au
q 2.189990478029217 9.7282e-08 au
i 10.55352687175279 4.056e-06 deg
node 228.1840737517848 2.2341e-05 deg
peri 37.74981933960269 2.4169e-05 deg
M 168.3459125079058 9.5866e-06 deg
tp 2458205.743935250178
(2018-Mar-28.24393525)
4.3873e-05 TDB
period 1699.549332963457
4.65
1.108e-05
3.034e-08
d
yr
n .2118208592228847 1.3809e-09 deg/d
Q 3.384265325583901 1.4708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2358  
   data-arc span      17281 days (47.31 yr)  
   first obs. used      1972-10-06  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:16:19  

Additional Information
 Earth MOID = 1.18525 au 
 Jupiter MOID = 1.72461 au 
 T_jup = 3.272 
[ 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 12.5   n/a MPO458990  
diameter diameter 22.922 km 4.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.138 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.043   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

17973 (1999 JP51)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JP51 = 1972 TP5 = 1985 JO2 = 1989 EE11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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