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20926 (1101 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2020926
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04376305930058907 4.4175e-08  
a 2.682653334073152 1.5841e-08 au
q 2.565252217131186 1.2228e-07 au
i 3.586850489676945 4.4317e-06 deg
node 278.3857096751165 7.7244e-05 deg
peri 234.3915231937987 9.3877e-05 deg
M 189.9350349214318 5.2185e-05 deg
tp 2460154.654316975759
(2023-Jul-29.15431698)
0.00023187 TDB
period 1604.889954760406
4.39
1.4215e-05
3.892e-08
d
yr
n .224314445318928 1.9869e-09 deg/d
Q 2.800054451015119 1.6534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      18342 days (50.22 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50477  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:11:49  

Additional Information
 Earth MOID = 1.57835 au 
 Jupiter MOID = 2.19471 au 
 T_jup = 3.371 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456933.5 (2014-Oct-03.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04458167295385536 4.339e-08  
q 2.562394133378103 1.1995e-07 au
tp 2456932.326611308721
(2014-Oct-01.82661131)
0.0002343 TDB
node 278.4875294678901 7.7022e-05 deg
peri 231.2426958192343 9.3628e-05 deg
i 3.593052047192344 4.4369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      18342 days (50.22 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50477  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:11:49  

Additional Information
 Jupiter MOID = 2.19471 au 
 T_jup = 3.371 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.882713476451924E-15 -5.167820975553359E-15 1.707563216532655E-12 -8.007259628511508E-17 3.985616579630532E-13 -6.785652687533394E-16
q -5.167820975553359E-15 1.438905192045868E-14 -5.146427878583278E-12 -4.090220355275225E-17 -1.200740287745908E-12 1.930483103206978E-15
tp 1.707563216532655E-12 -5.146427878583278E-12 5.48981147601589E-8 1.112454601334733E-11 1.249996678341341E-8 -1.379755304926039E-12
node -8.007259628511508E-17 -4.090220355275225E-17 1.112454601334733E-11 5.932353733487294E-9 -5.918061470849908E-9 2.350958197163194E-11
peri 3.985616579630532E-13 -1.200740287745908E-12 1.249996678341341E-8 -5.918061470849908E-9 8.766196741323871E-9 -2.37680468835005E-11
i -6.785652687533394E-16 1.930483103206978E-15 -1.379755304926039E-12 2.350958197163194E-11 -2.37680468835005E-11 1.968635443173148E-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 14.74   n/a E2021B10  
diameter diameter 6.121 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20926 (1101 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1101 T-1 = 1993 FS30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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