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13926 Berners-Lee (1986 XT)
Classification: Main-belt Asteroid          SPK-ID: 2013926
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2952487921087983 3.8853e-08  
a 2.561676845123149 1.0311e-08 au
q 1.805344850827462 9.5544e-08 au
i 3.271068625158466 4.3984e-06 deg
node 354.7722183146141 8.1093e-05 deg
peri 19.6337177086535 8.1716e-05 deg
M 91.28996772281023 1.3963e-05 deg
tp 2458620.743257230226
(2019-May-17.24325723)
5.6572e-05 TDB
period 1497.562446425962
4.10
9.0416e-06
2.475e-08
d
yr
n .2403906433812929 1.4514e-09 deg/d
Q 3.318008839418836 1.3355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      12204 days (33.41 yr)  
   first obs. used      1986-11-25  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:56:41  

Additional Information
 Earth MOID = .806603 au 
 Jupiter MOID = 2.15227 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456264.5 (2012-Dec-03.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2966899076004731 3.9286e-08  
q 1.800436391694844 9.6982e-08 au
tp 2455622.211632869130
(2011-Mar-01.71163287)
4.5041e-05 TDB
node 355.008882051894 8.0478e-05 deg
peri 18.72011255580221 8.1116e-05 deg
i 3.290532824665213 4.4156e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      12204 days (33.41 yr)  
   first obs. used      1986-11-25  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:56:41  

Additional Information
 Jupiter MOID = 2.15227 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.543361537416357E-15 -3.802205235131143E-15 1.149784784500993E-13 -7.171556459553408E-15 -1.588301438836919E-14 6.22158652703908E-17
q -3.802205235131143E-15 9.405483797342642E-15 -1.345215685150594E-13 1.425140969970926E-14 7.872059485395338E-14 -2.500653982141517E-16
tp 1.149784784500993E-13 -1.345215685150594E-13 2.028660992876183E-9 -1.643163245529775E-12 4.801550359199249E-10 -2.381411294035076E-12
node -7.171556459553408E-15 1.425140969970926E-14 -1.643163245529775E-12 6.476640387186847E-9 -6.466451665511438E-9 -1.38693975757075E-10
peri -1.588301438836919E-14 7.872059485395338E-14 4.801550359199249E-10 -6.466451665511438E-9 6.57983472780274E-9 1.379438832951778E-10
i 6.22158652703908E-17 -2.500653982141517E-16 -2.381411294035076E-12 -1.38693975757075E-10 1.379438832951778E-10 1.949764316447266E-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 14.5   n/a MPO452366  
diameter diameter 2.893 km 0.516 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.334   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13926 Berners-Lee           Discovered 1986 Dec. 2 by E. Bowell at the Lowell Observatory's Anderson Mesa Station.
Tim Berners-Lee (b. 1955) is the creator of a hypertext program that evolved into the World Wide Web. He founded the World Wide Web Consortium (W3C) at the Massachusetts Institute of Technology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Nov-21 09:38 00:01 Europ 0.0361510252702927 0.0361490492040648 0.0361530036208599 5.19374777563382 5.19374771902681 2421553.901203818 1.44039580102549 496.765986976279 36.1375206375207 -79.3333338716598 147020.208149771 T 21 CATAB v2.0f-lin.ifort 2020-May-20 03:56:50 2020-May-20 03:56
1934-Apr-18 17:27 00:01 Europ 0.0364314432475006 0.036430389686071 0.036432497825725 5.30696515917704 5.30696510420409 2427546.227416809 1.21815454638743 421.742689035516 36.1876882966292 -84.7970011771844 149929.456831879 T 21 CATAB v2.0f-lin.ifort 2020-May-20 03:56:50 2020-May-20 03:56

Alternate Designations
 1986 XT = 1990 TL3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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