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91705 (1999 TR145)
Classification: Outer Main-belt Asteroid          SPK-ID: 2091705
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09379190967204501 4.6539e-08  
a 3.206132557723546 2.6773e-08 au
q 2.905423262472937 1.4068e-07 au
i 5.028693515794251 7.2146e-06 deg
node 22.18129034558276 5.4512e-05 deg
peri 93.41121324287933 6.7695e-05 deg
M 124.8155145827067 3.8763e-05 deg
tp 2458273.496152723014
(2018-Jun-03.99615272)
0.00022479 TDB
period 2096.865809468664
5.74
2.6265e-05
7.191e-08
d
yr
n .1716848061398942 2.1505e-09 deg/d
Q 3.506841852974155 2.9284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      7581 days (20.76 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:40:47  

Additional Information
 Earth MOID = 1.92747 au 
 Jupiter MOID = 1.58558 au 
 T_jup = 3.180 
[ 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 14.2   n/a MPO395816  
diameter diameter 6.106 km 1.781 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.119   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91705 (1999 TR145)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TR145 = 1999 TJ229 = 2001 AH31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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