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JPL Small-Body Database Browser
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39459 (4266 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .147246584241496 3.9452e-08  
a 3.086164832301511 2.0492e-08 au
q 2.631737602338885 1.2762e-07 au
i 17.79122360214614 5.6608e-06 deg
node 41.76787506702483 1.2652e-05 deg
peri 281.7479302319234 2.3038e-05 deg
M 352.1962226309914 2.0294e-05 deg
tp 2459043.426894816665
(2020-Jul-12.92689482)
0.00011178 TDB
period 1980.282291928416
5.42
1.9724e-05
5.4e-08
d
yr
n .1817922633895942 1.8107e-09 deg/d
Q 3.540592062264138 2.351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      15264 days (41.79 yr)  
   first obs. used      1977-10-11  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47938  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:26:55  

Additional Information
 Earth MOID = 1.69243 au 
 Jupiter MOID = 2.0018 au 
 T_jup = 3.137 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456962.5 (2014-Nov-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483137073422319 3.9485e-08  
q 2.627215940090775 1.2789e-07 au
tp 2457070.460603770061
(2015-Feb-16.96060377)
0.00010715 TDB
node 41.83541203434656 1.2634e-05 deg
peri 282.7432367704571 2.2922e-05 deg
i 17.81238078770131 5.6653e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      15264 days (41.79 yr)  
   first obs. used      1977-10-11  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47938  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:26:55  

Additional Information
 Jupiter MOID = 2.0018 au 
 T_jup = 3.137 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.559051204966376E-15 -5.008885658786484E-15 1.362390360327257E-12 -2.998586760179493E-15 2.302361908035126E-13 3.315315133502086E-15
q -5.008885658786484E-15 1.635708869904496E-14 -3.997624429771472E-12 9.439747812555187E-15 -6.756973047022458E-13 -9.894752077152853E-15
tp 1.362390360327257E-12 -3.997624429771472E-12 1.148191692815608E-8 -1.579381558076127E-11 2.063583294916854E-9 1.37487227482589E-12
node -2.998586760179493E-15 9.439747812555187E-15 -1.579381558076127E-11 1.596156523805453E-10 -1.544078118006557E-10 -7.760376549109417E-12
peri 2.302361908035126E-13 -6.756973047022458E-13 2.063583294916854E-9 -1.544078118006557E-10 5.254119922914445E-10 7.596992262858612E-12
i 3.315315133502086E-15 -9.894752077152853E-15 1.37487227482589E-12 -7.760376549109417E-12 7.596992262858612E-12 3.209544270444084E-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 13.5   n/a MPO395375  
diameter diameter 15.290 km 2.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39459 (4266 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

Alternate Designations
 4266 T-3 = 1999 XX163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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