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152864 (1999 XT143)
Classification: Mars-crossing Asteroid          SPK-ID: 2152864
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3612334662922047 4.0196e-08  
a 2.20840084162604 7.0892e-09 au
q 1.410652550642843 9.1434e-08 au
i 2.741472983592006 3.1678e-06 deg
node 100.4840073541937 6.7795e-05 deg
peri 257.1630612689884 6.7987e-05 deg
M 266.9150983527322 6.2919e-06 deg
tp 2459706.450275195449
(2022-May-06.95027520)
2.2178e-05 TDB
period 1198.713186518544
3.28
5.772e-06
1.58e-08
d
yr
n .3003220487175569 1.4461e-09 deg/d
Q 3.006149132609237 9.65e-09 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1999-12-08  
   last obs. used      2021-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57999  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:49:04  

Additional Information
 Earth MOID = .409617 au 
 Jupiter MOID = 2.44807 au 
 T_jup = 3.570 
[ 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 16.85   n/a E2021B55  
diameter diameter 2.139 km 0.551 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.068   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

152864 (1999 XT143)          Discovered 1999-Dec-08 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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