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91787 (1999 TZ219)
Classification: Outer Main-belt Asteroid          SPK-ID: 2091787
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 .1090309896760372 4.7878e-08  
a 3.243014654175451 2.5008e-08 au
q 2.88942555689681 1.5961e-07 au
i 12.45339417922639 6.5352e-06 deg
node 345.5826706303297 1.7958e-05 deg
peri 256.1714236653484 3.6743e-05 deg
M 24.37080552307523 3.2822e-05 deg
tp 2459252.092690411132
(2021-Feb-06.59269041)
0.00019471 TDB
period 2133.151955226497
5.84
2.4674e-05
6.755e-08
d
yr
n .1687643485115786 1.9521e-09 deg/d
Q 3.596603751454092 2.7735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      942  
   data-arc span      7969 days (21.82 yr)  
   first obs. used      1999-09-05  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53413  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:41:27  

Additional Information
 Earth MOID = 1.91144 au 
 Jupiter MOID = 1.58209 au 
 T_jup = 3.137 
[ 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 13.77   n/a E2021B10  
diameter diameter 10.383 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91787 (1999 TZ219)          Discovered 1999-Oct-01 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TZ219 = 2000 XB20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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