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312426 (2008 GL91)
Classification: Main-belt Asteroid          SPK-ID: 2312426
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09931405864744651 6.0853e-08  
a 3.082923345068656 3.0163e-08 au
q 2.776745715170926 1.9151e-07 au
i 9.918764019033222 5.2643e-06 deg
node 195.1498505313286 3.176e-05 deg
peri 122.4535915243408 4.7361e-05 deg
M 346.0249705005631 2.9979e-05 deg
tp 2459077.252538648495
(2020-Aug-15.75253865)
0.00016433 TDB
period 1977.163190572981
5.41
2.9017e-05
7.944e-08
d
yr
n .1820790523091178 2.6722e-09 deg/d
Q 3.389100974966387 3.3159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      7647 days (20.94 yr)  
   first obs. used      1999-11-09  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:30  

Additional Information
 Earth MOID = 1.7802 au 
 Jupiter MOID = 1.95336 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457871.5 (2017-Apr-28.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09969062077691744 6.1173e-08  
q 2.772044337873623 1.9278e-07 au
tp 2457110.026139674356
(2015-Mar-28.52613967)
0.00017358 TDB
node 195.2783265016578 3.1719e-05 deg
peri 123.6473606612106 4.7086e-05 deg
i 9.929381608618842 5.2666e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      7647 days (20.94 yr)  
   first obs. used      1999-11-09  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:30  

Additional Information
 Jupiter MOID = 1.95336 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.742121883397666E-15 -1.167603898418944E-14 3.949683291021732E-12 -1.12445983419474E-14 8.793744901779408E-13 -1.031052156582121E-14
q -1.167603898418944E-14 3.716241014612445E-14 -1.432487668885029E-11 3.845258738522691E-14 -3.086867736873954E-12 3.205409872405491E-14
tp 3.949683291021732E-12 -1.432487668885029E-11 3.01314658469622E-8 -6.129134932821064E-11 6.066636425484276E-9 2.273720750240281E-13
node -1.12445983419474E-14 3.845258738522691E-14 -6.129134932821064E-11 1.00612083752928E-9 -1.00287178589644E-9 -5.056515473395726E-11
peri 8.793744901779408E-13 -3.086867736873954E-12 6.066636425484276E-9 -1.00287178589644E-9 2.21709355837927E-9 4.969501274583576E-11
i -1.031052156582121E-14 3.205409872405491E-14 2.273720750240281E-13 -5.056515473395726E-11 4.969501274583576E-11 2.773749839742813E-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 16.1   n/a MPO437379  

312426 (2008 GL91)          Discovered 2008-Apr-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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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
1930-Jun-09 22:14 00:04 Jupiter 1.98619184259511 1.98619097774861 1.98619270744227 3.14225638413185 3.00347533743471 2426137.426204471 4.08157391093797 85.7539632643494 32.6436702856439 53.72673231439 1794140.87396853 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47
2000-Feb-09 13:04 < 00:01 Jupiter 1.98500891029511 1.9850082439096 1.9850095766805 4.59973642184803 4.50601329243309 2451584.044371285 0.750861746752842 75.8237979198359 30.4154931709905 89.2757660420232 2658289.0565409 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47
2059-Nov-20 10:57 00:02 Jupiter 1.97416468913714 1.97416400783191 1.97416537044316 4.18643746434143 4.08266474171699 2473417.955960371 1.99784137116529 142.85829354691 26.1027956905536 -85.6689237687172 2492091.81400462 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47
2119-Sep-06 12:14 00:05 Jupiter 1.98517050680733 1.98516994130068 1.98517107231388 3.69382667729491 3.57645154208771 2495257.009420800 4.83146066498771 219.723576090811 23.7026803093149 85.2969261337918 2240594.91111449 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47

Alternate Designations
 2008 GL91 = 1999 VC127 = 2004 TT18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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