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162352 (1999 XS226)
Classification: Jupiter Trojan          SPK-ID: 2162352
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07509773487769639 4.4807e-08  
a 5.219910027722035 1.0489e-07 au
q 4.827906608374737 2.9587e-07 au
i 2.284036223113524 4.9012e-06 deg
node 64.2875592956788 0.00014686 deg
peri 35.62347357286855 0.000154 deg
M 290.9600557518867 4.8998e-05 deg
tp 2460035.893100700619
(2023-Apr-01.39310070)
0.00060671 TDB
period 4356.050972049296
11.93
0.0001313
3.595e-07
d
yr
n .08264366103839201 2.491e-09 deg/d
Q 5.611913447069333 1.1277e-07 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      8503 days (23.28 yr)  
   first obs. used      1997-11-01  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5404  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:09:33  

Additional Information
 Earth MOID = 3.84493 au 
 Jupiter MOID = .0228355 au 
 T_jup = 2.993 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.78   n/a MPCxxxxx  
diameter diameter 11.561 km 0.811 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.121   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

162352 (1999 XS226)          Discovered 1999-Dec-14 by Spacewatch at Kitt Peak
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

Alternate Designations
 1999 XS226 = 2001 DC33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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