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79123 (1990 RT8)
Classification: Main-belt Asteroid          SPK-ID: 2079123
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085104033236145 3.7151e-08  
a 2.454456018325845 1.1288e-08 au
q 1.94267640400465 9.1297e-08 au
i 3.041499633116629 4.9196e-06 deg
node 153.7293615964886 7.4624e-05 deg
peri 158.8455057846834 7.5663e-05 deg
M 288.1203830890387 1.2858e-05 deg
tp 2459280.936514975488
(2021-Mar-07.43651498)		 5.0731e-05 TDB
period 1404.530932826665
3.85		 9.689e-06
2.653e-08		 d
yr
n .256313329657673 1.7682e-09 deg/d
Q 2.96623563264704 1.3642e-08 au
   Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      10870 days (29.76 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5355  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:21  

Additional Information
 Earth MOID = .928991 au 
 Jupiter MOID = 2.32025 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457456.5 (2016-Mar-09.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077205918519213 3.7096e-08  
q 1.946013348767568 9.1005e-08 au
tp 2457875.559342286180
(2017-May-02.05934229)		 4.8862e-05 TDB
node 153.7395400117534 7.4623e-05 deg
peri 158.6705123289987 7.567e-05 deg
i 3.040766170817973 4.9185e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      10870 days (29.76 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5355  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:21  

Additional Information
 Jupiter MOID = 2.32025 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.376087418674729E-15 -3.359367303451855E-15 1.069566484784887E-12 5.853363351886112E-15 2.850671943880946E-13 9.084158005901427E-16
q -3.359367303451855E-15 8.281861293151853E-15 -2.564799221870956E-12 -1.462152348329907E-14 -6.902955710951297E-13 -2.067512755265592E-15
tp 1.069566484784887E-12 -2.564799221870956E-12 2.387492553462708E-9 1.903292273778031E-12 6.284953652477443E-10 1.183535273428423E-12
node 5.853363351886112E-15 -1.462152348329907E-14 1.903292273778031E-12 5.568561335307117E-9 -5.559922483182471E-9 1.798511395514508E-10
peri 2.850671943880946E-13 -6.902955710951297E-13 6.284953652477443E-10 -5.559922483182471E-9 5.725907406879852E-9 -1.793119859126561E-10
i 9.084158005901427E-16 -2.067512755265592E-15 1.183535273428423E-12 1.798511395514508E-10 -1.793119859126561E-10 2.419159044419984E-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 15.8   n/a MPO436334  

79123 (1990 RT8)          Discovered 1990-Sep-15 by Debehogne, H. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1990 RT8 = 1996 AC17 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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