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15521 (1999 XH133)
Classification: Jupiter Trojan          SPK-ID: 2015521
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06967840687043166 6.791e-08  
a 5.241042415764816 9.2848e-08 au
q 4.875854929893965 3.3737e-07 au
i 10.67949374348728 7.1099e-06 deg
node 10.40834447219051 2.177e-05 deg
peri 171.410870530209 4.0897e-05 deg
M 198.5003209799334 3.8115e-05 deg
tp 2461166.547930354622
(2026-May-06.04793035)
0.00049846 TDB
period 4382.530412581942
12.00
0.00011646
3.189e-07
d
yr
n .08214432442190586 2.1828e-09 deg/d
Q 5.606229901635666 9.9317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1266  
   data-arc span      24042 days (65.82 yr)  
   first obs. used      1955-04-16  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52595  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:00:49  

Additional Information
 Earth MOID = 3.87823 au 
 Jupiter MOID = .583759 au 
 T_jup = 2.960 
[ 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 11.27   n/a E2021B10  
diameter diameter 27.941 km 1.154 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 50.1991 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.082   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

15521 (1999 XH133)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XH133 = 1991 GE6 = 1996 TF68 = 1998 XE28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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