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JPL Small-Body Database Browser
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152742 (1998 XE12)
Classification: Aten [NEO]          SPK-ID: 2152742
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7391574461815332 9.3007e-08  
a .8782248859327024 3.2777e-09 au
q .2290784220736178 8.2004e-08 au
i 13.43500680145354 1.576e-05 deg
node 280.0537054722918 1.8101e-05 deg
peri 353.1208363497882 2.0276e-05 deg
M 141.151659760327 3.4732e-05 deg
tp 2458882.633462841652
(2020-Feb-03.13346284)
2.8543e-05 TDB
period 300.6125004059749
0.82
1.6829e-06
4.608e-09
d
yr
n 1.197554990274266 6.7043e-09 deg/d
Q 1.527371349791787 5.7005e-09 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      8472 days (23.20 yr)  
   first obs. used      1995-11-30  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57734  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Mar-14 06:56:34  

Additional Information
 Earth MOID = .111701 au 
 Jupiter MOID = 3.61042 au 
 T_jup = 6.463 
[ 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 19.1   n/a MPO251301  
diameter diameter 0.413 km 0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  
geometric albedo albedo 0.264   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  

152742 (1998 XE12)          Discovered 1998-Dec-14 by LINEAR at Socorro
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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