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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1671325814526005 3.6724e-08  
a 2.337467343013875 8.6529e-09 au
q 1.946800391914815 8.6694e-08 au
i 5.215273144826341 4.5112e-06 deg
node 103.2321018578631 5.0054e-05 deg
peri 26.14047473458427 5.2245e-05 deg
M 79.26290926049805 1.4458e-05 deg
tp 2458913.101655107631
(2020-Mar-04.60165511)
5.2065e-05 TDB
period 1305.319286492748
3.57
7.2481e-06
1.984e-08
d
yr
n .2757945919632285 1.5314e-09 deg/d
Q 2.728134294112935 1.0099e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:45:10  

Additional Information
 Earth MOID = .963318 au 
 Jupiter MOID = 2.32629 au 
 T_jup = 3.542 
[ show covariance matrix ]

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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