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91677 (1999 TU115)
Classification: Main-belt Asteroid          SPK-ID: 2091677
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174527976740339 7.0723e-08  
a 3.078213299341477 2.6609e-08 au
q 2.716668535496403 2.2984e-07 au
i 9.360687145256179 5.2947e-06 deg
node 208.453432440341 2.7396e-05 deg
peri 162.6914223705264 3.3678e-05 deg
M 301.6968279437107 1.9385e-05 deg
tp 2459319.974482368447
(2021-Apr-15.47448237)
0.00010784 TDB
period 1972.633899603312
5.40
2.5578e-05
7.003e-08
d
yr
n .1824971172159184 2.3663e-09 deg/d
Q 3.439758063186552 2.9734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51307  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:18:58  

Additional Information
 Earth MOID = 1.71886 au 
 Jupiter MOID = 2.03464 au 
 T_jup = 3.198 
[ 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 14.5   n/a MPO436412  
diameter diameter 4.471 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.128   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91677 (1999 TU115)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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