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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .295248792190018 3.8853e-08  
a 2.561676844974985 1.0306e-08 au
q 1.805344850514985 9.5539e-08 au
i 3.271068649382599 4.3976e-06 deg
node 354.772219056932 8.1054e-05 deg
peri 19.63371695522153 8.1677e-05 deg
M 91.28996782685184 1.3961e-05 deg
tp 2458620.743256830370
(2019-May-17.24325683)
5.6562e-05 TDB
period 1497.562446296037
4.10
9.0378e-06
2.474e-08
d
yr
n .2403906434021486 1.4508e-09 deg/d
Q 3.318008839434986 1.3349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1301  
   data-arc span      12227 days (33.48 yr)  
   first obs. used      1986-11-25  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55393  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:43:14  

Additional Information
 Earth MOID = .806603 au 
 Jupiter MOID = 2.15227 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456275.5 (2012-Dec-14.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2966753078203999 3.9285e-08  
q 1.800493855237252 9.6979e-08 au
tp 2455622.201161852671
(2011-Mar-01.70116185)
4.5041e-05 TDB
node 355.0088288229749 8.044e-05 deg
peri 18.72059256306577 8.1078e-05 deg
i 3.290496809260346 4.4148e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1301  
   data-arc span      12227 days (33.48 yr)  
   first obs. used      1986-11-25  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55393  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:43:14  

Additional Information
 Jupiter MOID = 2.15227 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.543282876606629E-15 -3.802007774786829E-15 1.151241945969525E-13 -7.167673549877135E-15 -1.588149881766448E-14 6.251535190716095E-17
q -3.802007774786829E-15 9.404942849454963E-15 -1.34950399908017E-13 1.426796291437782E-14 7.870043188965556E-14 -2.508638917916578E-16
tp 1.151241945969525E-13 -1.34950399908017E-13 2.028684539346276E-9 -1.515170725484415E-12 4.800762560639635E-10 -2.376859393610327E-12
node -7.167673549877135E-15 1.426796291437782E-14 -1.515170725484415E-12 6.470518252998286E-9 -6.46030837575054E-9 -1.388967870190592E-10
peri -1.588149881766448E-14 7.870043188965556E-14 4.800762560639635E-10 -6.46030837575054E-9 6.573682915220618E-9 1.381472712805874E-10
i 6.251535190716095E-17 -2.508638917916578E-16 -2.376859393610327E-12 -1.388967870190592E-10 1.381472712805874E-10 1.949065558182117E-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 22 CATAB v2.0f-lin.ifort 2020-Nov-13 02:43:17 2020-Nov-13 02:43
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 22 CATAB v2.0f-lin.ifort 2020-Nov-13 02:43:17 2020-Nov-13 02:43

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