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91814 (1999 TV261)
Classification: Main-belt Asteroid          SPK-ID: 2091814
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140043430790526 5.7603e-08  
a 3.07774310864834 2.9636e-08 au
q 2.726867027380805 1.788e-07 au
i 12.27164490168767 7.5172e-06 deg
node 219.1061102603196 2.2932e-05 deg
peri 302.3832517817685 3.5559e-05 deg
M 168.0516186017792 2.8122e-05 deg
tp 2458079.865645160127
(2017-Nov-22.36564516)
0.00015268 TDB
period 1972.18194326184
5.40
2.8486e-05
7.799e-08
d
yr
n .1825389392849766 2.6366e-09 deg/d
Q 3.428619189915875 3.3015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      9374 days (25.66 yr)  
   first obs. used      1994-11-30  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:19:57  

Additional Information
 Earth MOID = 1.75627 au 
 Jupiter MOID = 1.65926 au 
 T_jup = 3.184 
[ 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 14.8   n/a MPO436413  
diameter diameter 7.732 km 0.884 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.036   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91814 (1999 TV261)          Discovered 1999-Oct-13 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TV261 = 2002 JL56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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