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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1085489820572066 3.6196e-08  
a 3.112964484849499 1.5805e-08 au
q 2.775055358838849 1.0904e-07 au
i .6638683806133675 3.852e-06 deg
node 150.2757879880691 0.00031044 deg
peri 18.87744210492664 0.00031093 deg
M 118.5981195886938 1.7805e-05 deg
tp 2458339.601177334511
(2018-Aug-09.10117733)
9.8129e-05 TDB
period 2006.132786798904
5.49
1.5278e-05
4.183e-08
d
yr
n .1794497365124249 1.3667e-09 deg/d
Q 3.450873610860148 1.7521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      15747 days (43.11 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:09:14  

Additional Information
 Earth MOID = 1.78133 au 
 Jupiter MOID = 1.51792 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457170.5 (2015-May-28.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1061989538839533 3.6056e-08  
q 2.779533192682682 1.079e-07 au
tp 2456329.622389732997
(2013-Feb-06.12238973)
9.8153e-05 TDB
node 150.3863424965484 0.00031178 deg
peri 17.51659625991199 0.00031229 deg
i .6622567513788981 3.8452e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      15747 days (43.11 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:09:14  

Additional Information
 Jupiter MOID = 1.51792 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.300065520703013E-15 -3.862349922930315E-15 4.327637303011908E-14 7.43927139781069E-15 -4.862786521213078E-15 -1.157121577787506E-16
q -3.862349922930315E-15 1.164180531668016E-14 1.608122607287521E-14 -8.490697133035165E-15 3.713573038686898E-14 1.9647174156875E-16
tp 4.327637303011908E-14 1.608122607287521E-14 9.633958694829202E-9 -3.725060636094435E-11 1.782853695395574E-9 2.514497982928028E-14
node 7.43927139781069E-15 -8.490697133035165E-15 -3.725060636094435E-11 9.720846922588137E-8 -9.720595084573055E-8 -8.025976166600787E-11
peri -4.862786521213078E-15 3.713573038686898E-14 1.782853695395574E-9 -9.720595084573055E-8 9.752720044359312E-8 8.02342573502348E-11
i -1.157121577787506E-16 1.9647174156875E-16 2.514497982928028E-14 -8.025976166600787E-11 8.02342573502348E-11 1.478551192709408E-11

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

[ show close-approach data ]
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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