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11412 (1999 JE19)
Classification: Main-belt Asteroid          SPK-ID: 2011412
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006197532443857 4.573e-08  
a 3.05628416410451 1.5741e-08 au
q 2.74876160566759 1.3819e-07 au
i 10.19836505489534 4.8454e-06 deg
node 25.99793508758259 1.943e-05 deg
peri 1.071106254218072 2.6248e-05 deg
M 165.7428684310589 1.8098e-05 deg
tp 2458101.993189005696
(2017-Dec-14.49318901)
9.6114e-05 TDB
period 1951.591975086967
5.34
1.5077e-05
4.128e-08
d
yr
n .184464788027199 1.4251e-09 deg/d
Q 3.363806722541429 1.7325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2012  
   data-arc span      25655 days (70.24 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:15:17  

Additional Information
 Earth MOID = 1.75317 au 
 Jupiter MOID = 2.09163 au 
 T_jup = 3.203 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457139.5 (2015-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1001762402167898 4.5594e-08  
q 2.750317448759935 1.3767e-07 au
tp 2458105.451295792200
(2017-Dec-17.95129579)
9.6823e-05 TDB
node 26.02280888669927 1.9429e-05 deg
peri 1.859354816843458 2.6361e-05 deg
i 10.19842876601064 4.8451e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2012  
   data-arc span      25655 days (70.24 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:15:17  

Additional Information
 Jupiter MOID = 2.09163 au 
 T_jup = 3.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.07879674348685E-15 -6.244697277284542E-15 -6.725088539684392E-13 6.393905843959E-16 -1.941219949419068E-13 -1.080369688055773E-15
q -6.244697277284542E-15 1.895224186086373E-14 2.382512520108812E-12 -1.093463645115456E-15 6.305490644352357E-13 4.056373723571322E-15
tp -6.725088539684392E-13 2.382512520108812E-12 9.374666413634887E-9 4.88989971066073E-12 1.7256963478911E-9 -5.571740978224812E-12
node 6.393905843959E-16 -1.093463645115456E-15 4.88989971066073E-12 3.774949482888045E-10 -3.703836650871788E-10 -1.988675805710171E-11
peri -1.941219949419068E-13 6.305490644352357E-13 1.7256963478911E-9 -3.703836650871788E-10 6.949035820926882E-10 1.857898474449259E-11
i -1.080369688055773E-15 4.056373723571322E-15 -5.571740978224812E-12 -1.988675805710171E-11 1.857898474449259E-11 2.347486924462259E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO435807  
diameter diameter 8.730 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.12 h n/a LCDB (Rev. 2019-August); 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.220   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11412 (1999 JE19)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JE19 = 1985 SE6 = 1985 UR6 = 1985 VA6 = 1990 SB20 = 1993 FG = 1996 XA5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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