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79638 (1998 RL78)
Classification: Main-belt Asteroid          SPK-ID: 2079638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701612199229747 4.3682e-08  
a 2.271736514350602 8.7288e-09 au
q 1.885175057725138 1.0209e-07 au
i 4.526108485189664 3.7578e-06 deg
node 53.0575253085921 5.3404e-05 deg
peri 284.4273763191808 5.4175e-05 deg
M 253.1321142831631 1.0964e-05 deg
tp 2459767.761642259093
(2022-Jul-07.26164226)
3.9109e-05 TDB
period 1250.648782997458
3.42
7.2082e-06
1.973e-08
d
yr
n .2878505979409983 1.659e-09 deg/d
Q 2.658297970976067 1.0214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      14479 days (39.64 yr)  
   first obs. used      1981-09-24  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:09:13  

Additional Information
 Earth MOID = .881565 au 
 Jupiter MOID = 2.72196 au 
 T_jup = 3.589 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708487659278651 4.3761e-08  
q 1.88362611308696 1.0236e-07 au
tp 2457265.417395233150
(2015-Aug-30.91739523)
3.4044e-05 TDB
node 53.08690846621199 5.3418e-05 deg
peri 284.3022368844956 5.4179e-05 deg
i 4.526416312289856 3.7581e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      14479 days (39.64 yr)  
   first obs. used      1981-09-24  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:09:13  

Additional Information
 Jupiter MOID = 2.72196 au 
 T_jup = 3.589 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.915043493953162E-15 -4.469558503794122E-15 2.697634284822376E-13 9.787909587090269E-15 8.694396269201215E-14 -2.063433676691054E-15
q -4.469558503794122E-15 1.047664919985527E-14 -5.771326669740335E-13 -2.210921047742861E-14 -1.922711974310587E-13 4.906371889048071E-15
tp 2.697634284822376E-13 -5.771326669740335E-13 1.159007574505846E-9 5.378795507699694E-12 3.270776139464998E-10 -4.85013988241127E-13
node 9.787909587090269E-15 -2.210921047742861E-14 5.378795507699694E-12 2.853463747912504E-9 -2.842877626602103E-9 -7.519609246628416E-11
peri 8.694396269201215E-14 -1.922711974310587E-13 3.270776139464998E-10 -2.842877626602103E-9 2.935370585450769E-9 7.482014209359866E-11
i -2.063433676691054E-15 4.906371889048071E-15 -4.85013988241127E-13 -7.519609246628416E-11 7.482014209359866E-11 1.412333103319095E-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 15.81   n/a MPCxxxxx  

79638 (1998 RL78)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 RL78 = 1981 SB8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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