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226563 (2003 WT68)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226563
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04893168981157778 6.5745e-08  
a 3.234785644151501 3.8713e-08 au
q 3.076502116404935 2.326e-07 au
i 19.44599586325747 6.9743e-06 deg
node 243.6150486448128 1.7523e-05 deg
peri 226.7890606036135 8.6281e-05 deg
M 291.8198575105004 8.8877e-05 deg
tp 2459602.959414660985
(2022-Jan-23.45941466)
0.00052803 TDB
period 2125.03793608628
5.82
3.8148e-05
1.044e-07
d
yr
n .1694087403743099 3.0412e-09 deg/d
Q 3.393069171898067 4.0607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1998-01-17  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:09:32  

Additional Information
 Earth MOID = 2.11686 au 
 Jupiter MOID = 1.8895 au 
 T_jup = 3.094 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457866.5 (2017-Apr-23.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04510372288900621 6.5214e-08  
q 3.094140633616077 2.2857e-07 au
tp 2457475.107156412577
(2016-Mar-27.60715641)
0.00055506 TDB
node 243.6786476381065 1.7558e-05 deg
peri 226.8311604771961 9.3223e-05 deg
i 19.40873486024373 6.9712e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1998-01-17  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:09:32  

Additional Information
 Jupiter MOID = 1.8895 au 
 T_jup = 3.094 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.252845937625854E-15 -1.475389224252179E-14 -1.541034074125766E-11 -3.882421958342495E-15 -2.411199411666377E-12 9.638933595215933E-16
q -1.475389224252179E-14 5.224586161060254E-14 5.7116393342596E-11 1.857423954970346E-14 8.997716451288728E-12 -2.192587998981719E-15
tp -1.541034074125766E-11 5.7116393342596E-11 3.080924560277504E-7 6.822645292162196E-11 5.084472716310389E-8 6.743569986274592E-11
node -3.882421958342495E-15 1.857423954970346E-14 6.822645292162196E-11 3.082910761105757E-10 -2.797265734344739E-10 -2.754467797548036E-11
peri -2.411199411666377E-12 8.997716451288728E-12 5.084472716310389E-8 -2.797265734344739E-10 8.690538762483386E-9 3.70370049925091E-11
i 9.638933595215933E-16 -2.192587998981719E-15 6.743569986274592E-11 -2.754467797548036E-11 3.70370049925091E-11 4.859702952093173E-11

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 14.68   n/a E2021B55  
diameter diameter 6.604 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226563 (2003 WT68)          Discovered 2003-Nov-19 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1960-May-13 13:35 00:03 Jupiter 1.99602288013238 1.99602213828988 1.9960236219759 5.85830718081375 5.78541725356193 2437068.065905927 2.8634203039794 372.533201999543 35.3169950736641 -88.6378321640724 2644211.44972906 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 13:09:33 2021-Feb-24 13:09
1971-Nov-26 05:20 00:02 Jupiter 1.98712840622543 1.98712761826026 1.98712919419501 6.00998750177699 5.93863963213388 2441281.722505499 2.14955422534764 316.048724081458 33.4912322624778 86.7555253045072 2719049.3602183 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 13:09:33 2021-Feb-24 13:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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