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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085103987944581 4.1866e-08  
a 2.454456017346702 1.2084e-08 au
q 1.942676414346284 1.0133e-07 au
i 3.041497130624866 5.4576e-06 deg
node 153.7293581118974 7.4713e-05 deg
peri 158.8455088358662 7.5781e-05 deg
M 288.1203839670078 1.344e-05 deg
tp 2459280.936511382305
(2021-Mar-07.43651138)
5.3195e-05 TDB
period 1404.530931986212
3.85
1.0373e-05
2.84e-08
d
yr
n .2563133298110475 1.8929e-09 deg/d
Q 2.96623562034712 1.4604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      10817 days (29.62 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:37:48  

Additional Information
 Earth MOID = .928991 au 
 Jupiter MOID = 2.32025 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457249.5 (2015-Aug-15.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2079229605149868 4.175e-08  
q 1.945977177587144 1.0081e-07 au
tp 2457874.796690655692
(2017-May-01.29669066)
5.0353e-05 TDB
node 153.7367948755613 7.4731e-05 deg
peri 158.508506434323 7.5801e-05 deg
i 3.03942896863774 5.4543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      10817 days (29.62 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:37:48  

Additional Information
 Jupiter MOID = 2.32025 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.743053774045043E-15 -4.190191098970022E-15 1.296651996225101E-12 5.119833104857036E-15 3.211053261739436E-13 -4.991888696217513E-17
q -4.190191098970022E-15 1.016248279264304E-14 -3.069932832677028E-12 -1.332716137010679E-14 -7.683746836412665E-13 1.166964037098454E-16
tp 1.296651996225101E-12 -3.069932832677028E-12 2.535471820530341E-9 1.061934380408174E-12 6.522291633106461E-10 -3.488817397272212E-13
node 5.119833104857036E-15 -1.332716137010679E-14 1.061934380408174E-12 5.584689674352174E-9 -5.576271877872567E-9 1.85811237594046E-10
peri 3.211053261739436E-13 -7.683746836412665E-13 6.522291633106461E-10 -5.576271877872567E-9 5.745717163690972E-9 -1.856452545818632E-10
i -4.991888696217513E-17 1.166964037098454E-16 -3.488817397272212E-13 1.85811237594046E-10 -1.856452545818632E-10 2.974972347499969E-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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