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351237 (2004 QL12)
Classification: Mars-crossing Asteroid          SPK-ID: 2351237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2927320472806472 6.4794e-08  
a 2.318169033617718 1.434e-08 au
q 1.639566666464204 1.5195e-07 au
i 12.8907119522384 8.1752e-06 deg
node 12.63889509376173 3.0399e-05 deg
peri 301.8706608059131 3.2731e-05 deg
M 68.17914822188976 1.5172e-05 deg
tp 2458356.345267033874
(2018-Aug-25.84526703)
5.2858e-05 TDB
period 1289.187473884944
3.53
1.1962e-05
3.275e-08
d
yr
n .2792456545634486 2.5911e-09 deg/d
Q 2.996771400771232 1.8538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      5137 days (14.06 yr)  
   first obs. used      2004-08-15  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:47:25  

Additional Information
 Earth MOID = .668061 au 
 Jupiter MOID = 2.436 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456823.5 (2014-Jun-15.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2937374150275627 6.4842e-08  
q 1.63653093760933 1.5217e-07 au
tp 2457067.959380701793
(2015-Feb-14.45938070)
4.5994e-05 TDB
node 12.65249966608964 3.039e-05 deg
peri 301.9636743099582 3.2703e-05 deg
i 12.89710029556615 8.1784e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      5137 days (14.06 yr)  
   first obs. used      2004-08-15  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:47:25  

Additional Information
 Jupiter MOID = 2.436 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.204438776663018E-15 -9.84559852889954E-15 2.785614217822663E-13 -7.287679842801163E-14 2.160528140402409E-13 -2.134612188767175E-14
q -9.84559852889954E-15 2.315496154198705E-14 -4.335794984477632E-13 1.744515318120423E-13 -4.653378897484905E-13 5.30823065943069E-14
tp 2.785614217822663E-13 -4.335794984477632E-13 2.115450448361523E-9 -5.166185017105778E-13 5.799727016148837E-10 3.575232330087737E-13
node -7.287679842801163E-14 1.744515318120423E-13 -5.166185017105778E-13 9.235687067710083E-10 -9.003616114818023E-10 -1.377164947099119E-11
peri 2.160528140402409E-13 -4.653378897484905E-13 5.799727016148837E-10 -9.003616114818023E-10 1.069467338233811E-9 1.236795851914447E-11
i -2.134612188767175E-14 5.30823065943069E-14 3.575232330087737E-13 -1.377164947099119E-11 1.236795851914447E-11 6.688639168669567E-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 16.8   n/a MPO455542  

351237 (2004 QL12)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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