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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102297234756816 3.6074e-08  
a 3.108741860054203 1.5693e-08 au
q 2.766066104463153 1.0858e-07 au
i .6659747431870296 3.7884e-06 deg
node 150.2195820739531 0.00030905 deg
peri 18.73392836040013 0.00030951 deg
M 154.6321095537717 1.7431e-05 deg
tp 2458340.551192617948
(2018-Aug-10.05119262)
9.5406e-05 TDB
period 2002.052300462763
5.48
1.516e-05
4.151e-08
d
yr
n .1798154823012307 1.3616e-09 deg/d
Q 3.451417615645254 1.7423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1301  
   data-arc span      15747 days (43.11 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:52:36  

Additional Information
 Earth MOID = 1.77205 au 
 Jupiter MOID = 1.51669 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457192.5 (2015-Jun-19.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1061940270554989 3.5834e-08  
q 2.779578540847831 1.0705e-07 au
tp 2456329.666496337467
(2013-Feb-06.16649634)
9.751e-05 TDB
node 150.3861965892991 0.00031161 deg
peri 17.5255494186171 0.00031211 deg
i .6622774021446211 3.7758e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1301  
   data-arc span      15747 days (43.11 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:52:36  

Additional Information
 Jupiter MOID = 1.51669 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.284053369722442E-15 -3.808216638567696E-15 8.839809442561191E-14 7.385059697771527E-15 2.472181424789307E-15 -1.213146067991192E-16
q -3.808216638567696E-15 1.145874008623887E-14 -1.369019608949023E-13 -8.379380774751703E-15 1.232279507782842E-14 2.20091925906282E-16
tp 8.839809442561191E-14 -1.369019608949023E-13 9.508195495969848E-9 -3.647809260388326E-11 1.76175996088266E-9 -5.300681407257322E-15
node 7.385059697771527E-15 -8.379380774751703E-15 -3.647809260388326E-11 9.709847277849895E-8 -9.709584086104388E-8 -7.283646102392033E-11
peri 2.472181424789307E-15 1.232279507782842E-14 1.76175996088266E-9 -9.709584086104388E-8 9.741369035101159E-8 7.280682926087772E-11
i -1.213146067991192E-16 2.20091925906282E-16 -5.300681407257322E-15 -7.283646102392033E-11 7.280682926087772E-11 1.425696708235448E-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 14.43   n/a E2021B10  
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. 2020-October); 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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