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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07072816514513086 3.7742e-08  
a 3.212775890919974 2.1836e-08 au
q 2.985542147132692 1.2086e-07 au
i 15.46670967254511 4.2902e-06 deg
node 108.7221196119276 1.3439e-05 deg
peri 338.9395611733353 3.3151e-05 deg
M 231.5554776405972 3.3602e-05 deg
tp 2460146.967971955903
(2023-Jul-21.46797196)
0.00020089 TDB
period 2103.386465544729
5.76
2.1444e-05
5.871e-08
d
yr
n .1711525703417361 1.7449e-09 deg/d
Q 3.440009634707257 2.338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1100  
   data-arc span      8000 days (21.90 yr)  
   first obs. used      1999-09-14  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52745  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:50  

Additional Information
 Earth MOID = 2.007 au 
 Jupiter MOID = 1.73144 au 
 T_jup = 3.130 
[ 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 13.89   n/a MPO637246  
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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