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91611 (1999 TN27)
Classification: Main-belt Asteroid          SPK-ID: 2091611
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1430831136467664 3.6672e-08  
a 3.15149464574914 1.8835e-08 au
q 2.70056897919424 1.1503e-07 au
i 4.460807195063968 4.3269e-06 deg
node 223.3879212353359 5.2095e-05 deg
peri 236.3469603770127 5.4292e-05 deg
M 268.9742106529895 1.7647e-05 deg
tp 2459913.196167446992
(2022-Nov-29.69616745)
0.00010191 TDB
period 2043.493625436229
5.59
1.832e-05
5.016e-08
d
yr
n .1761688881819487 1.5794e-09 deg/d
Q 3.60242031230404 2.153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1999-10-03  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .521  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:35  

Additional Information
 Earth MOID = 1.72083 au 
 Jupiter MOID = 1.59551 au 
 T_jup = 3.187 
[ 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 14.26   n/a E2021B10  
diameter diameter 7.815 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91611 (1999 TN27)          Discovered 1999-Oct-03 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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