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21366 (1997 JT15)
Classification: Main-belt Asteroid          SPK-ID: 2021366
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03017445283230621 1.4278e-08  
a 2.916358695404038 1.1426e-08 au
q 2.828359167507483 4.3742e-08 au
i 3.100758191357781 7.4148e-07 deg
node 115.8490474360646 1.0966e-05 deg
peri 207.2939970935887 3.8495e-05 deg
M 179.0518765320954 4.059e-05 deg
tp 2458295.734126929523
(2018-Jun-26.23412693)
0.00020392 TDB
period 1819.113659202486
4.98
1.069e-05
2.927e-08
d
yr
n .1978985744946948 1.163e-09 deg/d
Q 3.004358223300593 1.1771e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2929  
   data-arc span      10983 days (30.07 yr)  
   first obs. used      1991-02-14  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45267  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:44:06  

Additional Information
 Earth MOID = 1.81382 au 
 Jupiter MOID = 2.08723 au 
 T_jup = 3.279 
[ 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 12.91   n/a E2021B10  
diameter diameter 7.439 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21366 (1997 JT15)          Discovered 1997-May-03 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 JT15 = 1998 OT12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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