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91773 (1999 TL203)
Classification: Main-belt Asteroid          SPK-ID: 2091773
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06490995518417371 4.0451e-08  
a 3.111367664273444 2.5465e-08 au
q 2.909408928623967 1.1928e-07 au
i 9.080152301927038 5.5043e-06 deg
node 10.97532143182837 3.005e-05 deg
peri 221.3497067903304 5.9554e-05 deg
M 134.9826149861062 4.9185e-05 deg
tp 2458644.875783246080
(2019-Jun-10.37578325)
0.00027569 TDB
period 2004.589391450615
5.49
2.461e-05
6.738e-08
d
yr
n .1795879004126063 2.2047e-09 deg/d
Q 3.31332639992292 2.7118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      22180 days (60.73 yr)  
   first obs. used      1960-10-17  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:52  

Additional Information
 Earth MOID = 1.90767 au 
 Jupiter MOID = 1.68655 au 
 T_jup = 3.196 
[ 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 14.66   n/a E2021B10  
diameter diameter 4.394 km 0.769 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.159   0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91773 (1999 TL203)          Discovered 1999-Oct-13 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TL203 = 1999 TE180 = 2002 EP30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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