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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06991177453106767 7.3524e-08  
a 5.239685195849455 9.9244e-08 au
q 4.873369505823455 3.5635e-07 au
i 10.680997937673 7.1765e-06 deg
node 10.40825386042403 2.5028e-05 deg
peri 171.6260829939889 4.3514e-05 deg
M 181.8262111961184 3.8073e-05 deg
tp 2461168.690982559893
(2026-May-08.19098256)
0.00049826 TDB
period 4380.828173220934
11.99
0.00012446
3.408e-07
d
yr
n .08217624288498759 2.3347e-09 deg/d
Q 5.606000885875456 1.0618e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1103  
   data-arc span      23900 days (65.43 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:40:55  

Additional Information
 Earth MOID = 3.87619 au 
 Jupiter MOID = .585222 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 11.2   n/a MPO299074  
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)  
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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