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74996 (1999 TV271)
Classification: Main-belt Asteroid          SPK-ID: 2074996
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1400174028087884 4.0754e-08  
a 2.412030573622836 1.2924e-08 au
q 2.074304317208775 9.8018e-08 au
i 5.761814923557501 4.1628e-06 deg
node 289.6612124476925 4.2986e-05 deg
peri 24.08754095678683 4.6589e-05 deg
M 234.937899831329 2.1561e-05 deg
tp 2459475.830690580045
(2021-Sep-18.33069058)
8.4376e-05 TDB
period 1368.27262918205
3.75
1.0997e-05
3.011e-08
d
yr
n .2631054603607815 2.1146e-09 deg/d
Q 2.749756830036898 1.4733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      890  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56255  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:52  

Additional Information
 Earth MOID = 1.06164 au 
 Jupiter MOID = 2.5032 au 
 T_jup = 3.499 
[ 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 15.4   n/a MPO266276  
diameter diameter 2.036 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74996 (1999 TV271)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TV271 = 2002 JL111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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