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26118 (1991 TH)
Classification: Main-belt Asteroid          SPK-ID: 2026118
[ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .207276819454582 3.5998e-08  
a 2.322646570809881 8.2104e-09 au
q 1.841215776895318 8.2931e-08 au
i 7.00960642672555 4.2846e-06 deg
node 165.9043419393613 3.2519e-05 deg
peri 199.7992256677221 3.4097e-05 deg
M 95.23115096899323 1.2009e-05 deg
tp 2458858.481455902942
(2020-Jan-09.98145590)		 4.2226e-05 TDB
period 1292.924370041796
3.54		 6.8556e-06
1.877e-08		 d
yr
n .2784385601675699 1.4764e-09 deg/d
Q 2.804077364724445 9.9123e-09 au
   Orbit Determination Parameters
   # obs. used (total)      913  
   data-arc span      10702 days (29.30 yr)  
   first obs. used      1991-10-01  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:17:46  

Additional Information
 Earth MOID = .839165 au 
 Jupiter MOID = 2.65631 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456888.5 (2014-Aug-19.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085260386922806 3.6069e-08  
q 1.837421692530799 8.3155e-08 au
tp 2456273.896161799527
(2012-Dec-12.39616180)		 3.7141e-05 TDB
node 165.9946657386979 3.2496e-05 deg
peri 199.7191453920628 3.4047e-05 deg
i 7.013410863656613 4.2873e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      913  
   data-arc span      10702 days (29.30 yr)  
   first obs. used      1991-10-01  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:17:46  

Additional Information
 Jupiter MOID = 2.65631 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.30095261899476E-15 -2.990388754744214E-15 -1.663428566964268E-13 -3.641481883327679E-16 -3.602512835668996E-14 4.906375155259729E-16
q -2.990388754744214E-15 6.914827558946103E-15 4.278470736354528E-13 8.575962968814784E-16 9.818175754346858E-14 -1.123028395457434E-15
tp -1.663428566964268E-13 4.278470736354528E-13 1.379485452903618E-9 -8.48873543053329E-12 3.915347700421962E-10 -3.53582924925628E-14
node -3.641481883327679E-16 8.575962968814784E-16 -8.48873543053329E-12 1.056020314770866E-9 -1.049726237409812E-9 -6.789762723522399E-12
peri -3.602512835668996E-14 9.818175754346858E-14 3.915347700421962E-10 -1.049726237409812E-9 1.15919294594732E-9 6.757956738277898E-12
i 4.906375155259729E-16 -1.123028395457434E-15 -3.53582924925628E-14 -6.789762723522399E-12 6.757956738277898E-12 1.838074677285434E-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 15.8   n/a MPO435945  
diameter diameter 3.186 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.100   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26118 (1991 TH)          Discovered 1991-Oct-01 by McNaught, R. H. at Siding Spring
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 TH = 2000 DK13 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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