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91333 (1999 JP2)
Classification: Main-belt Asteroid          SPK-ID: 2091333
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1672347612124327 3.6722e-08  
a 2.337794618151309 8.6842e-09 au
q 1.946834093421065 8.673e-08 au
i 5.215258188958384 4.5112e-06 deg
node 103.2330626724316 5.0051e-05 deg
peri 26.16935684438852 5.2239e-05 deg
M 24.07496920003155 1.4378e-05 deg
tp 2458913.188550532762
(2020-Mar-04.68855053)
5.2041e-05 TDB
period 1305.593438024609
3.57
7.2749e-06
1.992e-08
d
yr
n .2757366799764924 1.5364e-09 deg/d
Q 2.728755142881554 1.0137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      10774 days (29.50 yr)  
   first obs. used      1990-11-10  
   last obs. used      2020-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:16  

Additional Information
 Earth MOID = .963434 au 
 Jupiter MOID = 2.3262 au 
 T_jup = 3.542 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456864.5 (2014-Jul-26.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668890123647124 3.6803e-08  
q 1.948039734457618 8.6906e-08 au
tp 2456302.220935094450
(2013-Jan-09.72093509)
5.1195e-05 TDB
node 103.2738804273166 5.0054e-05 deg
peri 26.30463800567849 5.2243e-05 deg
i 5.21467609768476 4.5102e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      10774 days (29.50 yr)  
   first obs. used      1990-11-10  
   last obs. used      2020-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:16  

Additional Information
 Jupiter MOID = 2.3262 au 
 T_jup = 3.542 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.354448062796657E-15 -3.187385700188732E-15 -5.530817218245354E-14 7.391891228102309E-15 -1.301751726652419E-16 -6.896000967608346E-17
q -3.187385700188732E-15 7.552608379799769E-15 1.000969675081023E-13 -1.756006296389496E-14 -1.671572564810157E-15 2.100905496084408E-16
tp -5.530817218245354E-14 1.000969675081023E-13 2.620919916629438E-9 -1.060341735958859E-11 7.840575176154E-10 7.749859431054036E-13
node 7.391891228102309E-15 -1.756006296389496E-14 -1.060341735958859E-11 2.505392875089441E-9 -2.497301681484212E-9 -4.692575133974812E-11
peri -1.301751726652419E-16 -1.671572564810157E-15 7.840575176154E-10 -2.497301681484212E-9 2.729359068759548E-9 4.696030868488747E-11
i -6.896000967608346E-17 2.100905496084408E-16 7.749859431054036E-13 -4.692575133974812E-11 4.696030868488747E-11 2.034213151027194E-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 15.79   n/a E2021B10  
diameter diameter 3.626 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91333 (1999 JP2)          Discovered 1999-May-08 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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