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91641 (1999 TS90)
Classification: Main-belt Asteroid          SPK-ID: 2091641
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06811349927134973 3.458e-08  
a 2.910403693375678 1.815e-08 au
q 2.7121659135276 1.0929e-07 au
i 16.7722861854865 6.9723e-06 deg
node 26.74168953992741 1.1631e-05 deg
peri 72.18179129257929 5.3697e-05 deg
M 330.9042615839512 5.1268e-05 deg
tp 2459147.073398929136
(2020-Oct-24.57339893)
0.00025834 TDB
period 1813.544748717693
4.97
1.6964e-05
4.644e-08
d
yr
n .1985062680446932 1.8569e-09 deg/d
Q 3.108641473223756 1.9386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1249  
   data-arc span      7628 days (20.88 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:18:36  

Additional Information
 Earth MOID = 1.77793 au 
 Jupiter MOID = 2.07079 au 
 T_jup = 3.217 
[ 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 14.0   n/a MPO366279  
diameter diameter 11.147 km 3.460 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.029   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

91641 (1999 TS90)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TS90 = 2000 XJ43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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