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26156 (1994 WT)
Classification: Main-belt Asteroid          SPK-ID: 2026156
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2215222381949274 5.3911e-08  
a 2.521077507734798 9.4482e-09 au
q 1.962602775558496 1.3656e-07 au
i 5.578076890997338 4.7312e-06 deg
node 56.90035819198114 3.1004e-05 deg
peri 306.8805652212627 3.2936e-05 deg
M 224.5433519739562 1.3191e-05 deg
tp 2459750.642944091371
(2022-Jun-20.14294409)
5.4551e-05 TDB
period 1462.102176297874
4.00
8.2192e-06
2.25e-08
d
yr
n .2462208222078847 1.3841e-09 deg/d
Q 3.079552239911099 1.1541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1593  
   data-arc span      12485 days (34.18 yr)  
   first obs. used      1986-12-07  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49284  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:13:07  

Additional Information
 Earth MOID = .965383 au 
 Jupiter MOID = 2.39137 au 
 T_jup = 3.415 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456951.5 (2014-Oct-21.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2199309063007873 5.3384e-08  
q 1.967408695486416 1.3491e-07 au
tp 2456821.196454037238
(2014-Jun-12.69645404)
5.1561e-05 TDB
node 57.08492351705882 3.1074e-05 deg
peri 306.067161923218 3.3045e-05 deg
i 5.571450907039589 4.7228e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1593  
   data-arc span      12485 days (34.18 yr)  
   first obs. used      1986-12-07  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49284  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:13:07  

Additional Information
 Jupiter MOID = 2.39137 au 
 T_jup = 3.415 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.849893791820039E-15 -7.19146925073127E-15 1.965315157641671E-12 5.733457504713799E-16 3.376847638593368E-13 1.15651033323085E-15
q -7.19146925073127E-15 1.820156765386245E-14 -4.91612547723059E-12 -9.815304178808691E-16 -8.419081450981237E-13 -2.767021498874374E-15
tp 1.965315157641671E-12 -4.91612547723059E-12 2.658566357741214E-9 -1.805654161997282E-12 5.748133672096914E-10 -2.146094266421082E-13
node 5.733457504713799E-16 -9.815304178808691E-16 -1.805654161997282E-12 9.656050996463971E-10 -9.610412727024349E-10 -7.973829839785459E-12
peri 3.376847638593368E-13 -8.419081450981237E-13 5.748133672096914E-10 -9.610412727024349E-10 1.091963702065891E-9 7.766303850268184E-12
i 1.15651033323085E-15 -2.767021498874374E-15 -2.146094266421082E-13 -7.973829839785459E-12 7.766303850268184E-12 2.230525035099321E-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 14.63   n/a E2020-QM5  

26156 (1994 WT)          Discovered 1994-Nov-25 by Kobayashi, T. at Oizumi
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1994 WT = 1986 XW5 = 1998 XU30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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