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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7391388679951985 9.3011e-08  
a .8782029602643048 3.2657e-09 au
q .2290890183445143 8.2007e-08 au
i 13.43402818051898 1.576e-05 deg
node 280.0512550732068 1.8104e-05 deg
peri 353.126126883275 2.0281e-05 deg
M 20.65502099886784 3.5691e-05 deg
tp 2459183.252986155230
(2020-Nov-29.75298615)		 2.9733e-05 TDB
period 300.6012428870288
0.82		 1.6767e-06
4.591e-09		 d
yr
n 1.197599838718213 6.6802e-09 deg/d
Q 1.527316902184095 5.6796e-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 = .111723 au 
 Jupiter MOID = 3.60973 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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