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15666 (5021 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2015666
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1665857738418406 2.9985e-08  
a 2.570058766325054 9.6847e-09 au
q 2.141923537917789 7.8953e-08 au
i 9.40843259891135 3.9716e-06 deg
node 151.9134324238656 1.7335e-05 deg
peri 248.8918595094466 2.1411e-05 deg
M 201.6021002714559 1.3025e-05 deg
tp 2460058.655400915036
(2023-Apr-24.15540092)
5.6491e-05 TDB
period 1504.918592594549
4.12
8.5065e-06
2.329e-08
d
yr
n .23921559728978 1.3522e-09 deg/d
Q 2.998193994732319 1.1298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2204  
   data-arc span      15981 days (43.75 yr)  
   first obs. used      1977-10-11  
   last obs. used      2021-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:02:34  

Additional Information
 Earth MOID = 1.16939 au 
 Jupiter MOID = 2.48142 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457504.5 (2016-Apr-26.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1643686161368658 2.9836e-08  
q 2.150254024894265 7.8374e-08 au
tp 2457046.268290712400
(2015-Jan-23.76829071)
5.014e-05 TDB
node 151.9747569598383 1.7303e-05 deg
peri 248.8092760191787 2.1527e-05 deg
i 9.411894507409368 3.9735e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2204  
   data-arc span      15981 days (43.75 yr)  
   first obs. used      1977-10-11  
   last obs. used      2021-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:02:34  

Additional Information
 Jupiter MOID = 2.48142 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.901887661692471E-16 -2.326211432481355E-15 -6.976030909439862E-13 7.284273517522304E-15 -1.916057024336258E-13 1.907386142947678E-16
q -2.326211432481355E-15 6.14241894568366E-15 1.911220619380579E-12 -2.02946915481235E-14 5.272778110779142E-13 -4.208545033266545E-16
tp -6.976030909439862E-13 1.911220619380579E-12 2.513992533745831E-9 -1.785719908724977E-11 6.480587542762666E-10 1.306150960374625E-12
node 7.284273517522304E-15 -2.02946915481235E-14 -1.785719908724977E-11 2.993809290933559E-10 -2.995529958254055E-10 1.388800630601687E-11
peri -1.916057024336258E-13 5.272778110779142E-13 6.480587542762666E-10 -2.995529958254055E-10 4.634230140798321E-10 -1.339239142963985E-11
i 1.907386142947678E-16 -4.208545033266545E-16 1.306150960374625E-12 1.388800630601687E-11 -1.339239142963985E-11 1.578883432007126E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.05   n/a MPO636299  
diameter diameter 4.873 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.246   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15666 (5021 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 5021 T-3 = 1987 DF2 = 2000 FJ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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