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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3610821306758615 4.1373e-08  
a 2.208652259960866 7.1027e-09 au
q 1.411147396012139 9.3954e-08 au
i 2.741445523065514 3.6671e-06 deg
node 100.4852109066377 7.157e-05 deg
peri 257.1511247616721 7.1847e-05 deg
M 208.060967148631 6.4384e-06 deg
tp 2459706.506737737261
(2022-May-07.00673774)
2.3306e-05 TDB
period 1198.917895993259
3.28
5.7833e-06
1.583e-08
d
yr
n .3002707701695896 1.4484e-09 deg/d
Q 3.006157123909591 9.6673e-09 au
  Orbit Determination Parameters
   # obs. used (total)      584  
   data-arc span      7385 days (20.22 yr)  
   first obs. used      1999-12-08  
   last obs. used      2020-02-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57458  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:29:00  

Additional Information
 Earth MOID = .409276 au 
 Jupiter MOID = 2.44755 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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