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26330 (1998 WN5)
Classification: Main-belt Asteroid          SPK-ID: 2026330
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043324457170384 6.4555e-08  
a 2.975646544252257 1.9094e-08 au
q 2.665190062700965 1.9733e-07 au
i .8925329208283679 6.3437e-06 deg
node 355.8076618952129 0.00026106 deg
peri 348.4562755308933 0.00026198 deg
M 131.9622651254037 2.3091e-05 deg
tp 2458313.245325462198
(2018-Jul-13.74532546)
0.00012067 TDB
period 1874.86689924952
5.13
1.8046e-05
4.941e-08
d
yr
n .1920136304844372 1.8482e-09 deg/d
Q 3.286103025803548 2.1086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10051 days (27.52 yr)  
   first obs. used      1992-07-26  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:43:00  

Additional Information
 Earth MOID = 1.65751 au 
 Jupiter MOID = 2.08791 au 
 T_jup = 3.253 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456534.5 (2013-Aug-30.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035391564898148 6.3512e-08  
q 2.66583124637325 1.935e-07 au
tp 2456422.277020304899
(2013-May-09.77702030)
0.00012634 TDB
node 355.8573080474432 0.00025959 deg
peri 345.5811283447926 0.00026059 deg
i .8992331630103672 6.3327e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10051 days (27.52 yr)  
   first obs. used      1992-07-26  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:43:00  

Additional Information
 Jupiter MOID = 2.08791 au 
 T_jup = 3.253 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.033794412121488E-15 -1.224624764857659E-14 3.784580954090038E-12 1.41120261822097E-14 5.982478638879327E-13 -4.187131659284196E-17
q -1.224624764857659E-14 3.744378687146477E-14 -1.16386478249994E-11 -4.528013223419076E-14 -1.840195905937077E-12 2.572940028126461E-16
tp 3.784580954090038E-12 -1.16386478249994E-11 1.596078229418376E-8 3.703793281230386E-12 2.89840548947391E-9 -8.597442536269096E-13
node 1.41120261822097E-14 -4.528013223419076E-14 3.703793281230386E-12 6.738631592132415E-8 -6.737698967318859E-8 1.556230304746626E-10
peri 5.982478638879327E-13 -1.840195905937077E-12 2.89840548947391E-9 -6.737698967318859E-8 6.790907259344877E-8 -1.557578022015038E-10
i -4.187131659284196E-17 2.572940028126461E-16 -8.597442536269096E-13 1.556230304746626E-10 -1.557578022015038E-10 4.010275664913816E-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 14.6   n/a MPO459040  
rotation period rot_per 4.794 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

26330 (1998 WN5)          Discovered 1998-Nov-20 by Kagawa, T. at Gekko
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WN5 = 1992 OO10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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