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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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 
[ show covariance matrix ]

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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