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JPL Small-Body Database Browser
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39455 (4091 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017501217237434 4.758e-08  
a 3.166577593907788 2.7966e-08 au
q 2.844377938279993 1.5816e-07 au
i 8.045111582907371 5.1711e-06 deg
node 59.29187206365082 3.8814e-05 deg
peri 195.1599558946743 4.862e-05 deg
M 316.9283834590226 3.2651e-05 deg
tp 2459246.747766210101
(2021-Feb-01.24776621)
0.00018796 TDB
period 2058.18130255913
5.63
2.7266e-05
7.465e-08
d
yr
n .1749117045968585 2.3172e-09 deg/d
Q 3.488777249535584 3.0812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      15446 days (42.29 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:26:55  

Additional Information
 Earth MOID = 1.83084 au 
 Jupiter MOID = 1.54725 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005672435959034 4.7641e-08  
q 2.848672810803469 1.5822e-07 au
tp 2457182.938666991658
(2015-Jun-09.43866699)
0.00018035 TDB
node 59.31717620413947 3.8806e-05 deg
peri 194.4796199162688 4.8786e-05 deg
i 8.04541180351454 5.1709e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      15446 days (42.29 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:26:55  

Additional Information
 Jupiter MOID = 1.54725 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.269621042764482E-15 -7.446415983128375E-15 -6.638902134298689E-13 -1.268795839589419E-15 -6.815329821097437E-14 5.137974489475271E-16
q -7.446415983128375E-15 2.503199628821487E-14 3.342178279349085E-12 -1.54617270794016E-14 4.087277307895665E-13 -9.647724980362401E-16
tp -6.638902134298689E-13 3.342178279349085E-12 3.252784266382493E-8 -4.104529372502531E-11 5.371991984825559E-9 2.41222287625751E-12
node -1.268795839589419E-15 -1.54617270794016E-14 -4.104529372502531E-11 1.505906128342731E-9 -1.49807074060035E-9 7.313432742052254E-12
peri -6.815329821097437E-14 4.087277307895665E-13 5.371991984825559E-9 -1.49807074060035E-9 2.380038689738085E-9 -6.835953366222115E-12
i 5.137974489475271E-16 -9.647724980362401E-16 2.41222287625751E-12 7.313432742052254E-12 -6.835953366222115E-12 2.673791577155095E-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 14.2   n/a MPO389951  

39455 (4091 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4091 T-3 = 2000 VT12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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