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JPL Small-Body Database Browser
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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006197521045123 4.5766e-08  
a 3.056284161929014 1.6294e-08 au
q 2.74876160719477 1.3821e-07 au
i 10.19836440714305 4.8863e-06 deg
node 25.99792331008895 2.1599e-05 deg
peri 1.071122705033963 2.9435e-05 deg
M 165.7428646911489 1.9516e-05 deg
tp 2458101.993210239430
(2017-Dec-14.49321024)
0.00010467 TDB
period 1951.591973003222
5.34
1.5607e-05
4.273e-08
d
yr
n .1844647882241549 1.4752e-09 deg/d
Q 3.363806716663259 1.7934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1811  
   data-arc span      25521 days (69.87 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:02:33  

Additional Information
 Earth MOID = 1.75317 au 
 Jupiter MOID = 2.09163 au 
 T_jup = 3.203 
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Orbital Elements at Epoch 2456819.5 (2014-Jun-11.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09991063876058973 4.5607e-08  
q 2.752213407426774 1.3776e-07 au
tp 2456154.562998160299
(2012-Aug-15.06299816)
0.00010527 TDB
node 26.03130095268479 2.1603e-05 deg
peri 2.080358398822491 2.9591e-05 deg
i 10.19599840211158 4.8849e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1811  
   data-arc span      25521 days (69.87 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:02:33  

Additional Information
 Jupiter MOID = 2.09163 au 
 T_jup = 3.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.080036269599308E-15 -6.248235187833246E-15 -8.594723252163886E-13 1.086376895099836E-15 -2.091042470766913E-13 -1.03436511109653E-15
q -6.248235187833246E-15 1.897701149034313E-14 2.539236738095304E-12 -3.111379396599516E-15 6.342383063184627E-13 3.859621568498973E-15
tp -8.594723252163886E-13 2.539236738095304E-12 1.108270807266279E-8 2.246463977936536E-12 2.139932975652269E-9 -8.290679835331102E-12
node 1.086376895099836E-15 -3.111379396599516E-15 2.246463977936536E-12 4.666933395340424E-10 -4.584138494049141E-10 -1.432505017659678E-11
peri -2.091042470766913E-13 6.342383063184627E-13 2.139932975652269E-9 -4.584138494049141E-10 8.756008225769331E-10 1.270231590964088E-11
i -1.03436511109653E-15 3.859621568498973E-15 -8.290679835331102E-12 -1.432505017659678E-11 1.270231590964088E-11 2.386184235602716E-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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