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91826 (1999 TP281)
Classification: Outer Main-belt Asteroid          SPK-ID: 2091826
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07253210197671334 4.2744e-08  
a 3.208092885438087 2.3295e-08 au
q 2.975403165120723 1.3312e-07 au
i 15.48692570506615 4.5416e-06 deg
node 108.738951691399 1.4769e-05 deg
peri 339.0419574424604 3.2955e-05 deg
M 197.9547798476283 3.2816e-05 deg
tp 2460145.218788085175
(2023-Jul-19.71878809)
0.00019727 TDB
period 2098.789235442224
5.75
2.286e-05
6.259e-08
d
yr
n .1715274663699838 1.8683e-09 deg/d
Q 3.440782605755451 2.4985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5363  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:47:57  

Additional Information
 Earth MOID = 1.9965 au 
 Jupiter MOID = 1.73114 au 
 T_jup = 3.131 
[ 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 13.88   n/a E2021B10  
diameter diameter 8.853 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91826 (1999 TP281)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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