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26106 (1990 WJ2)
Classification: Main-belt Asteroid          SPK-ID: 2026106
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08152646595990047 2.4967e-08  
a 2.653967011098301 1.1777e-08 au
q 2.437598459909296 6.7744e-08 au
i 21.56731899718955 5.6106e-07 deg
node 216.4661675563185 3.3621e-06 deg
peri 195.7569629409818 1.5808e-05 deg
M 349.1265740883167 1.409e-05 deg
tp 2459248.198597133594
(2021-Feb-02.69859713)
6.1749e-05 TDB
period 1579.216624784593
4.32
1.0511e-05
2.878e-08
d
yr
n .2279611260102486 1.5173e-09 deg/d
Q 2.870335562287305 1.2737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1699  
   data-arc span      11077 days (30.33 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43646  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:12:08  

Additional Information
 Earth MOID = 1.44934 au 
 Jupiter MOID = 2.52192 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457594.5 (2016-Jul-25.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08250361499519915 2.4897e-08  
q 2.435210127824386 6.7562e-08 au
tp 2457662.204021007373
(2016-Sep-30.70402101)
6.3462e-05 TDB
node 216.5298055957247 3.3545e-06 deg
peri 194.3238314809996 1.5638e-05 deg
i 21.58952261483465 5.6163e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1699  
   data-arc span      11077 days (30.33 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43646  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:12:08  

Additional Information
 Jupiter MOID = 2.52192 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.198781525093644E-16 -1.660651510200468E-15 -1.310092555644069E-14 -9.846230927732813E-15 6.92048796271377E-14 1.545234557002488E-15
q -1.660651510200468E-15 4.56456232875036E-15 -1.896309637061716E-13 2.731334884787347E-14 -2.423030605996942E-13 -4.133226974003397E-15
tp -1.310092555644069E-14 -1.896309637061716E-13 4.027436686195014E-9 -4.851578873498441E-11 9.542063015186532E-10 -6.461020718436142E-13
node -9.846230927732813E-15 2.731334884787347E-14 -4.851578873498441E-11 1.125284451396131E-11 -2.243264969182614E-11 3.87377457639611E-13
peri 6.92048796271377E-14 -2.423030605996942E-13 9.542063015186532E-10 -2.243264969182614E-11 2.445620281613058E-10 -3.965709062123516E-13
i 1.545234557002488E-15 -4.133226974003397E-15 -6.461020718436142E-13 3.87377457639611E-13 -3.965709062123516E-13 3.154334179156492E-13

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 13.74   n/a E2020-QM5  
diameter diameter 4.978 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26106 (1990 WJ2)          Discovered 1990-Nov-18 by Elst, E. W. at La Silla
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ 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
2174-Mar-16 21:25 00:07 Iris 0.0274829126178122 0.0274697475826394 0.0274961107591441 5.35143769096122 5.35143765187355 2515172.392682967 7.12444631112172 1643.35682752188 38.3888578792359 -66.4665951780384 98163.7256860662 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 05:12:47 2021-Apr-13 05:12

Alternate Designations
 1990 WJ2 = 2001 FP8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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