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134483 (1998 WK2)
Classification: Main-belt Asteroid          SPK-ID: 2134483
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180571869455555 6.2298e-08  
a 2.536259588904918 9.2785e-09 au
q 2.078282453511779 1.6134e-07 au
i 2.175828566112166 5.8059e-06 deg
node 214.6896283001718 8.199e-05 deg
peri 185.1055109509515 8.2894e-05 deg
M 181.0432824147221 1.1562e-05 deg
tp 2459933.889156536560
(2022-Dec-20.38915654)
4.9894e-05 TDB
period 1475.329341729508
4.04
8.0959e-06
2.217e-08
d
yr
n .2440133127007269 1.339e-09 deg/d
Q 2.994236724298056 1.0954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1035  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1994-12-07  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:20:00  

Additional Information
 Earth MOID = 1.08521 au 
 Jupiter MOID = 2.41808 au 
 T_jup = 3.424 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457067.5 (2015-Feb-14.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1782085276452746 6.1973e-08  
q 2.085385422805717 1.6015e-07 au
tp 2456980.821945623274
(2014-Nov-19.32194562)
4.2537e-05 TDB
node 214.8178454819966 8.2312e-05 deg
peri 184.8704087644609 8.3244e-05 deg
i 2.169484689974438 5.7975e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1035  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1994-12-07  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:20:00  

Additional Information
 Jupiter MOID = 2.41808 au 
 T_jup = 3.424 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.840660247138209E-15 -9.915836814138194E-15 -1.335999692500136E-12 1.513377568783156E-14 -4.14461392215142E-13 1.97573219136392E-16
q -9.915836814138194E-15 2.564880431107485E-14 3.507346680349282E-12 -3.864273988420993E-14 1.08461831347707E-12 -4.94720516269175E-16
tp -1.335999692500136E-12 3.507346680349282E-12 1.809411903807986E-9 -6.399371498812365E-12 5.336277832508791E-10 -3.835030628520925E-14
node 1.513377568783156E-14 -3.864273988420993E-14 -6.399371498812365E-12 6.775187680614539E-9 -6.77171221587415E-9 -9.049749980736282E-11
peri -4.14461392215142E-13 1.08461831347707E-12 5.336277832508791E-10 -6.77171221587415E-9 6.929582244030639E-9 9.040533897102599E-11
i 1.97573219136392E-16 -4.94720516269175E-16 -3.835030628520925E-14 -9.049749980736282E-11 9.040533897102599E-11 3.36111489133737E-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 15.9   n/a MPO459635  
diameter diameter 1.735 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.50 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]
geometric albedo albedo 0.338   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134483 (1998 WK2)          Discovered 1998-Nov-19 by Griffin, I. P. at Cocoa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1998 WK2 = 1994 XU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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