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259110 (2002 WT18)
Classification: Main-belt Asteroid          SPK-ID: 2259110
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635858544448818 4.786e-08  
a 2.547181007987345 1.7026e-08 au
q 2.13049822636996 1.227e-07 au
i 4.873638263606329 8.0567e-06 deg
node 10.75914361118953 4.0034e-05 deg
peri 128.19594795809 4.7849e-05 deg
M 96.2764574206262 2.349e-05 deg
tp 2458803.394648625408
(2019-Nov-15.89464863)
9.6905e-05 TDB
period 1484.868994195313
4.07
1.4887e-05
4.076e-08
d
yr
n .2424456308316229 2.4308e-09 deg/d
Q 2.96386378960473 1.9811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6390 days (17.49 yr)  
   first obs. used      2002-11-24  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:47:00  

Additional Information
 Earth MOID = 1.14751 au 
 Jupiter MOID = 2.06313 au 
 T_jup = 3.418 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457192.5 (2015-Jun-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1642628965950639 4.8147e-08  
q 2.12861974011279 1.2392e-07 au
tp 2457319.705492729864
(2015-Oct-24.20549273)
9.7622e-05 TDB
node 10.77937743018256 4.0038e-05 deg
peri 128.5050020968021 4.7709e-05 deg
i 4.874333963541883 8.0558e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6390 days (17.49 yr)  
   first obs. used      2002-11-24  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:47:00  

Additional Information
 Jupiter MOID = 2.06313 au 
 T_jup = 3.418 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.318175256706684E-15 -5.926016356732797E-15 3.227463507933507E-12 -1.547759848772016E-14 8.162968877281969E-13 -7.396380270663024E-17
q -5.926016356732797E-15 1.535604751290179E-14 -8.51562778977739E-12 3.97063854830831E-14 -2.164512156909766E-12 3.834568245454449E-16
tp 3.227463507933507E-12 -8.51562778977739E-12 9.530120943731871E-9 -4.381407423997967E-11 2.535290610264058E-9 -2.948939376507806E-12
node -1.547759848772016E-14 3.97063854830831E-14 -4.381407423997967E-11 1.603042107711107E-9 -1.608047776967816E-9 4.62275447558589E-11
peri 8.162968877281969E-13 -2.164512156909766E-12 2.535290610264058E-9 -1.608047776967816E-9 2.276143202788391E-9 -4.68213973296222E-11
i -7.396380270663024E-17 3.834568245454449E-16 -2.948939376507806E-12 4.62275447558589E-11 -4.68213973296222E-11 6.48959406503174E-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 17.18   n/a E2021B55  
rotation period rot_per 5.52 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

259110 (2002 WT18)          Discovered 2002-Nov-25 by Lulin at Lulin
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

[ show close-approach data ]
Alternate Designations
 2002 WT18 = 2006 VV150 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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