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19360 (1997 JS12)
Classification: Main-belt Asteroid          SPK-ID: 2019360
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1085489614713394 3.8402e-08  
a 3.112964495236088 1.708e-08 au
q 2.775055432181059 1.1823e-07 au
i .6638661189476646 4.0043e-06 deg
node 150.2753206351686 0.00038134 deg
peri 18.87789124655254 0.00038191 deg
M 118.5981337329148 1.9835e-05 deg
tp 2458339.601095206860
(2018-Aug-09.10109521)
0.00011049 TDB
period 2006.132796839274
5.49
1.6511e-05
4.52e-08
d
yr
n .179449735614308 1.4769e-09 deg/d
Q 3.450873558291118 1.8934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      15271 days (41.81 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:46:30  

Additional Information
 Earth MOID = 1.78133 au 
 Jupiter MOID = 1.51792 au 
 T_jup = 3.209 
[ 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 14.4   n/a MPO263520  
diameter diameter 6.842 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.00 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.055   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19360 (1997 JS12)          Discovered 1997-May-03 by Elst, E. W. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 JS12 = 1977 RY18 = 1978 WS4 = 1999 RS228 = 1999 SZ21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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