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17966 (1999 JS43)
Classification: Main-belt Asteroid          SPK-ID: 2017966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1121205354960753 8.8212e-09  
a 2.252784157177223 6.2028e-09 au
q 2.000200791117438 1.9974e-08 au
i 4.927667463428539 5.509e-07 deg
node 292.7651694293644 9.1657e-06 deg
peri 200.2207598895078 1.1976e-05 deg
M 225.5332868983079 1.138e-05 deg
tp 2459661.807048204335
(2022-Mar-23.30704820)
3.9969e-05 TDB
period 1235.03083791427
3.38
5.1008e-06
1.397e-08
d
yr
n .2914906971942263 1.2039e-09 deg/d
Q 2.505367523237008 6.8983e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2680  
   data-arc span      25578 days (70.03 yr)  
   first obs. used      1951-01-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42964  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:18:41  

Additional Information
 Earth MOID = 1.01542 au 
 Jupiter MOID = 2.53295 au 
 T_jup = 3.613 
[ 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 13.8   n/a MPO474004  
diameter diameter 5.118 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 78.1156 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 0.204   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17966 (1999 JS43)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JS43 = 1951 AA1 = 1990 UM10 = 1995 AR4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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