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91757 (1999 TN190)
Classification: Main-belt Asteroid          SPK-ID: 2091757
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274161766368359 5.0094e-08  
a 2.839032836543169 1.6311e-08 au
q 2.193390843510091 1.4337e-07 au
i 11.64451759756668 6.1048e-06 deg
node 299.3044565213598 2.4052e-05 deg
peri 89.78827780778478 2.8921e-05 deg
M 107.4629258461105 1.407e-05 deg
tp 2458478.932874002784
(2018-Dec-26.43287400)
6.7224e-05 TDB
period 1747.245981631661
4.78
1.5058e-05
4.123e-08
d
yr
n .2060385336607356 1.7756e-09 deg/d
Q 3.484674829576248 2.0021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      8891 days (24.34 yr)  
   first obs. used      1995-12-19  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51867  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:43:10  

Additional Information
 Earth MOID = 1.23537 au 
 Jupiter MOID = 2.17474 au 
 T_jup = 3.242 
[ 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 15.1   n/a MPO453358  
diameter diameter 3.025 km 0.425 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.193   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91757 (1999 TN190)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TN190 = 1995 YW12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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