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13674 Bourge (1997 MJ2)
Classification: Main-belt Asteroid          SPK-ID: 2013674
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06956660564049311 2.8111e-08  
a 2.385895259503584 7.9534e-09 au
q 2.219916624886176 6.8968e-08 au
i 7.760737341220663 3.1326e-06 deg
node 94.76828104304064 2.8416e-05 deg
peri 8.104483931271487 4.187e-05 deg
M 274.0903083058696 3.1746e-05 deg
tp 2459521.729297539932
(2021-Nov-03.22929754)
0.00011928 TDB
period 1346.094309430241
3.69
6.7308e-06
1.843e-08
d
yr
n .2674403995901123 1.3373e-09 deg/d
Q 2.551873894120992 8.5067e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1743  
   data-arc span      14682 days (40.20 yr)  
   first obs. used      1980-11-29  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:04:48  

Additional Information
 Earth MOID = 1.23689 au 
 Jupiter MOID = 2.54353 au 
 T_jup = 3.520 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457324.5 (2015-Oct-29.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06984888624617475 2.8055e-08  
q 2.219331321407498 6.8909e-08 au
tp 2456823.635589332846
(2014-Jun-15.13558933)
0.00011459 TDB
node 94.79136257653622 2.8416e-05 deg
peri 6.809881181887697 4.1817e-05 deg
i 7.760976416913103 3.1327e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1743  
   data-arc span      14682 days (40.20 yr)  
   first obs. used      1980-11-29  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:04:48  

Additional Information
 Jupiter MOID = 2.54353 au 
 T_jup = 3.520 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.871063103508971E-16 -1.922523130569854E-15 -4.91194585494793E-14 -1.212604581218503E-15 -1.3417019908591E-14 7.119582661855542E-16
q -1.922523130569854E-15 4.748461329619276E-15 3.516777577661679E-13 1.455207144192113E-15 9.975011811015724E-14 -1.507267650845457E-15
tp -4.91194585494793E-14 3.516777577661679E-13 1.313096607587117E-8 -4.557744109379609E-11 3.531306322977093E-9 1.5560164699549E-12
node -1.212604581218503E-15 1.455207144192113E-15 -4.557744109379609E-11 8.074622158160428E-10 -8.120957958934556E-10 -2.231520101085386E-12
peri -1.3417019908591E-14 9.975011811015724E-14 3.531306322977093E-9 -8.120957958934556E-10 1.748685474329512E-9 2.624854365271313E-12
i 7.119582661855542E-16 -1.507267650845457E-15 1.5560164699549E-12 -2.231520101085386E-12 2.624854365271313E-12 9.813998537173055E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.53   n/a E2021B10  

13674 Bourge           Discovered 1997 June 30 by the OCA-DLR Asteroid Survey at Caussols.
Pierre Bourge (b. 1921) founded what was later to become the Association Française d´Astronomie in 1945, and its magazine Ciel et Espace in 1972. An avid solar eclipse observer and telescope maker, he has been an inspiration to a generation of astronomers, amateur and professional.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1997 MJ2 = 1980 WB3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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