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134965 (2001 DQ99)
Classification: Jupiter Trojan          SPK-ID: 2134965
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03294795398944634 5.993e-08  
a 5.141659679679441 1.1766e-07 au
q 4.972252513123972 3.9126e-07 au
i 27.49976712609469 4.503e-06 deg
node 304.7573466387828 1.3199e-05 deg
peri 132.3326090883036 0.00010213 deg
M 314.8779299166168 9.8867e-05 deg
tp 2459734.252513986104
(2022-Jun-03.75251399)
0.0011662 TDB
period 4258.468298992321
11.66
0.00014618
4.002e-07
d
yr
n .08453743804672365 2.9018e-09 deg/d
Q 5.311066846234911 1.2154e-07 au
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      12154 days (33.28 yr)  
   first obs. used      1987-11-27  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48953  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:10:54  

Additional Information
 Earth MOID = 4.02227 au 
 Jupiter MOID = .147814 au 
 T_jup = 2.775 
[ 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 12.14   n/a E2021B55  
diameter diameter 18.586 km 0.610 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
rotation period rot_per 10.596 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.081   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

134965 (2001 DQ99)          Discovered 2001-Feb-17 by NEAT at Haleakala
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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