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91687 (1999 TA127)
Classification: Main-belt Asteroid          SPK-ID: 2091687
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174455035478807 3.7857e-08  
a 2.897692313328621 1.9702e-08 au
q 2.557371380462918 1.1024e-07 au
i 3.350344087951406 4.2173e-06 deg
node 90.11340669487369 7.4327e-05 deg
peri 220.3790318655159 7.6853e-05 deg
M 202.2548924014922 2.0769e-05 deg
tp 2460185.960177422603
(2023-Aug-29.46017742)
0.00010557 TDB
period 1801.676566702128
4.93
1.8375e-05
5.031e-08
d
yr
n .199813888160271 2.0379e-09 deg/d
Q 3.238013246194325 2.2016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      7869 days (21.54 yr)  
   first obs. used      1999-10-02  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:48  

Additional Information
 Earth MOID = 1.54345 au 
 Jupiter MOID = 1.99709 au 
 T_jup = 3.275 
[ 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 15.07   n/a MPCxxxxx  

91687 (1999 TA127)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TA127 = 1999 TA219 = 2002 EN90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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