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JPL Small-Body Database Browser
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117972 (1055 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2117972
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2723024241114408 6.6504e-08  
a 2.611653445453845 1.7591e-08 au
q 1.900493881317766 1.8018e-07 au
i 11.6926110856733 5.7241e-06 deg
node 199.1053581968847 2.5829e-05 deg
peri 315.4378533783498 2.7198e-05 deg
M 160.1394800325069 1.0955e-05 deg
tp 2457914.747086517968
(2017-Jun-10.24708652)
4.2597e-05 TDB
period 1541.600165077462
4.22
1.5575e-05
4.264e-08
d
yr
n .2335235868257129 2.3593e-09 deg/d
Q 3.322813009589924 2.2381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      17743 days (48.58 yr)  
   first obs. used      1971-03-25  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 13:56:27  

Additional Information
 Earth MOID = .928213 au 
 Jupiter MOID = 1.76237 au 
 T_jup = 3.327 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456991.5 (2014-Nov-30.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2716264891728776 6.6754e-08  
q 1.903610679122467 1.8092e-07 au
tp 2456371.430999849354
(2013-Mar-19.93099985)
3.616e-05 TDB
node 199.1344522913325 2.5821e-05 deg
peri 315.4681645120937 2.7186e-05 deg
i 11.69036551253092 5.7244e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      17743 days (48.58 yr)  
   first obs. used      1971-03-25  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 13:56:27  

Additional Information
 Jupiter MOID = 1.76237 au 
 T_jup = 3.327 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.456083228334442E-15 -1.205361906059367E-14 -4.975499853020735E-13 3.0172535898173E-14 1.627270594338513E-14 -2.567039787985286E-14
q -1.205361906059367E-14 3.273172216590504E-14 1.411058417816314E-12 -8.697930976143405E-14 -1.725707242972743E-14 7.167886157752777E-14
tp -4.975499853020735E-13 1.411058417816314E-12 1.307517777289405E-9 -1.71686706367143E-11 3.258819623254735E-10 1.243497286240372E-11
node 3.0172535898173E-14 -8.697930976143405E-14 -1.71686706367143E-11 6.667346357015489E-10 -6.559285086028496E-10 -4.11151786894106E-11
peri 1.627270594338513E-14 -1.725707242972743E-14 3.258819623254735E-10 -6.559285086028496E-10 7.390638724052538E-10 4.227270303967784E-11
i -2.567039787985286E-14 7.167886157752777E-14 1.243497286240372E-11 -4.11151786894106E-11 4.227270303967784E-11 3.276835986808459E-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 15.6   n/a MPO453650  

117972 (1055 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1055 T-1 = 2003 UC257 = 2003 UQ181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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