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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06811349908975606 3.2911e-08  
a 2.910403693174059 1.7131e-08 au
q 2.712165913868225 1.0303e-07 au
i 16.77228544144108 6.0561e-06 deg
node 26.74168987774491 1.148e-05 deg
peri 72.18178972776734 4.9283e-05 deg
M 330.9042628707871 4.5969e-05 deg
tp 2459147.073392431309
(2020-Oct-24.57339243)
0.00023142 TDB
period 1813.544748529241
4.97
1.6012e-05
4.384e-08
d
yr
n .1985062680653206 1.7526e-09 deg/d
Q 3.108641472479893 1.8297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1335  
   data-arc span      7723 days (21.14 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:06  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2114-Oct-06 14:13 00:01 Inter 0.0363683110256862 0.0363538292931323 0.0363828118996824 9.21666739829172 9.21666735461785 2493461.092211684 1.42258277980205 1504.21531528251 55.2200384644056 -61.364171163018 86475.2600600964 T 26 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:09 2020-Nov-12 20:39

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