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278402 (2007 QA13)
Classification: Main-belt Asteroid          SPK-ID: 2278402
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404339504808113 5.4221e-08  
a 2.750771843744276 2.5104e-08 au
q 2.364470086855882 1.5201e-07 au
i 15.54086541663065 6.0215e-06 deg
node 155.7903288879351 2.6938e-05 deg
peri 141.5290780831386 4.3625e-05 deg
M 302.1278531481664 3.8387e-05 deg
tp 2459268.384370071625
(2021-Feb-22.88437007)
0.00017955 TDB
period 1666.403934740663
4.56
2.2812e-05
6.246e-08
d
yr
n .2160340554260787 2.9573e-09 deg/d
Q 3.137073600632669 2.8629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      13117 days (35.91 yr)  
   first obs. used      1984-05-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 16:32:31  

Additional Information
 Earth MOID = 1.36868 au 
 Jupiter MOID = 2.23792 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457424.5 (2016-Feb-06.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1393289703602118 5.4254e-08  
q 2.368000360694013 1.5202e-07 au
tp 2457601.004461537502
(2016-Jul-31.50446154)
0.00017011 TDB
node 155.8093936852293 2.6941e-05 deg
peri 141.4458987761523 4.3821e-05 deg
i 15.53797499201386 6.0208e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      13117 days (35.91 yr)  
   first obs. used      1984-05-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 16:32:31  

Additional Information
 Jupiter MOID = 2.23792 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.943506538299877E-15 -8.163424422555328E-15 -3.388724561603721E-12 1.775088246213075E-14 -5.912787410098877E-13 -5.809994349978263E-15
q -8.163424422555328E-15 2.311108226971421E-14 1.084811925445049E-11 -4.564759483562522E-14 1.924371035173699E-12 1.95625364515918E-14
tp -3.388724561603721E-12 1.084811925445049E-11 2.893651941864232E-8 -3.354451172432609E-11 5.954870748674037E-9 4.710377829891311E-11
node 1.775088246213075E-14 -4.564759483562522E-14 -3.354451172432609E-11 7.258003697280123E-10 -7.044806381173606E-10 6.522803331279105E-11
peri -5.912787410098877E-13 1.924371035173699E-12 5.954870748674037E-9 -7.044806381173606E-10 1.920288424017875E-9 -5.3017663740454E-11
i -5.809994349978263E-15 1.95625364515918E-14 4.710377829891311E-11 6.522803331279105E-11 -5.3017663740454E-11 3.62496219902589E-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 15.9   n/a MPO470944  

278402 (2007 QA13)          Discovered 2007-Aug-18 by Lowe, A. at Mayhill
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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