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227938 (2007 GD26)
Classification: Main-belt Asteroid          SPK-ID: 2227938
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01232705722319269 5.0331e-08  
a 2.785546221461686 2.3304e-08 au
q 2.75120863379188 1.4032e-07 au
i 7.909226527566803 6.4867e-06 deg
node 189.0835539009103 3.3801e-05 deg
peri 317.5280647592377 0.0002458 deg
M 24.96645386616955 0.00024112 deg
tp 2459082.734429237344
(2020-Aug-21.23442924)
0.0011377 TDB
period 1698.1028103476
4.65
2.131e-05
5.834e-08
d
yr
n .2120012980405517 2.6604e-09 deg/d
Q 2.819883809131492 2.3591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      10265 days (28.10 yr)  
   first obs. used      1993-03-24  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:51:04  

Additional Information
 Earth MOID = 1.76027 au 
 Jupiter MOID = 2.14495 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457240.5 (2015-Aug-06.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01259573643451253 5.2917e-08  
q 2.750465588809484 1.4889e-07 au
tp 2457430.281641254634
(2016-Feb-11.78164125)
0.0010586 TDB
node 189.1311056799986 3.3841e-05 deg
peri 327.3219303049428 0.00022827 deg
i 7.90300282288967 6.4844e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      10265 days (28.10 yr)  
   first obs. used      1993-03-24  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:51:04  

Additional Information
 Jupiter MOID = 2.14495 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.800246139105283E-15 -7.783908497784176E-15 1.524814801908136E-11 5.344381807356381E-15 3.241801111515521E-12 1.729408620929325E-15
q -7.783908497784176E-15 2.216750973773934E-14 -4.935778295778702E-11 -1.323662376651086E-14 -1.050954912826946E-11 -4.038117251053523E-15
tp 1.524814801908136E-11 -4.935778295778702E-11 1.120716612583637E-6 -5.288071737269586E-11 2.390045766596557E-7 3.201836092510998E-11
node 5.344381807356381E-15 -1.323662376651086E-14 -5.288071737269586E-11 1.145199103688091E-9 -1.145312672895167E-9 -5.894486623623482E-12
peri 3.241801111515521E-12 -1.050954912826946E-11 2.390045766596557E-7 -1.145312672895167E-9 5.210812437641027E-8 1.261669123929225E-11
i 1.729408620929325E-15 -4.038117251053523E-15 3.201836092510998E-11 -5.894486623623482E-12 1.261669123929225E-11 4.204717725424358E-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 16.26   n/a MPCxxxxx  

227938 (2007 GD26)          Discovered 2007-Apr-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2007 GD26 = 1995 SO20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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