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14026 Esquerdo (1994 ST7)
Classification: Main-belt Asteroid          SPK-ID: 2014026
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1601101468981483 3.3387e-08  
a 2.36115462617622 7.2252e-09 au
q 1.983109812129903 7.9444e-08 au
i 2.638282371945971 3.776e-06 deg
node 158.2153786002268 8.2746e-05 deg
peri 128.8822155414919 8.3603e-05 deg
M 198.6853541646029 1.168e-05 deg
tp 2459990.322116292754
(2023-Feb-14.82211629)
4.3293e-05 TDB
period 1325.211116190436
3.63
6.0827e-06
1.665e-08
d
yr
n .2716548296356633 1.2469e-09 deg/d
Q 2.739199440222537 8.382e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1235  
   data-arc span      16159 days (44.24 yr)  
   first obs. used      1976-10-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52969  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:16:00  

Additional Information
 Earth MOID = .967736 au 
 Jupiter MOID = 2.41437 au 
 T_jup = 3.532 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456663.5 (2014-Jan-06.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596373119491005 3.3309e-08  
q 1.985309765577094 7.9165e-08 au
tp 2456013.819250256379
(2012-Mar-27.31925026)
4.488e-05 TDB
node 158.2966839588089 8.2912e-05 deg
peri 128.6000086806726 8.3772e-05 deg
i 2.634723002039565 3.7722e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1235  
   data-arc span      16159 days (44.24 yr)  
   first obs. used      1976-10-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52969  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:16:00  

Additional Information
 Jupiter MOID = 2.41437 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.109478569989314E-15 -2.629100298564136E-15 2.820805815320311E-14 -1.209403760636189E-15 5.620850029644414E-15 -1.087367179662722E-16
q -2.629100298564136E-15 6.267130834830145E-15 -1.38815380037029E-13 1.904974450464919E-15 -2.739581710569761E-14 1.990308812093812E-16
tp 2.820805815320311E-14 -1.38815380037029E-13 2.014212453491167E-9 -4.360596846708134E-12 5.501631128750202E-10 2.263102329056775E-14
node -1.209403760636189E-15 1.904974450464919E-15 -4.360596846708134E-12 6.874396183588389E-9 -6.868087534884935E-9 -5.961434548730211E-12
peri 5.620850029644414E-15 -2.739581710569761E-14 5.501631128750202E-10 -6.868087534884935E-9 7.017713949810904E-9 5.951415479544812E-12
i -1.087367179662722E-16 1.990308812093812E-16 2.263102329056775E-14 -5.961434548730211E-12 5.951415479544812E-12 1.422944600945744E-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 15.3   n/a MPO395139  
diameter diameter 4.377 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.111   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14026 Esquerdo           Discovered 1994 Sept. 28 by Spacewatch at Kitt Peak.
Gil Esquerdo (b. 1976), a former research assistant at the Planetary Science Institute in Tucson, was appointed in 2002 research assistant for the Near-Earth-Asteroid Physical Study project at the University of Western Ontario.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

Alternate Designations
 1994 ST7 = 1976 UF21 = 1976 UV16 = 1997 JM18 = 1997 LR15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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