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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 | 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .169883567545914 4.447e-08  
a 2.272321690371426 9.326e-09 au
q 1.886291574999166 1.0338e-07 au
i 4.525732897648409 3.8357e-06 deg
node 53.06912832254302 5.7942e-05 deg
peri 284.355665717673 5.8796e-05 deg
M 139.2405353296229 1.08e-05 deg
tp 2458516.588067245129
(2019-Feb-02.08806725)		 3.6671e-05 TDB
period 1251.132045559518
3.43		 7.7023e-06
2.109e-08		 d
yr
n .2877394127004433 1.7714e-09 deg/d
Q 2.658351805743685 1.091e-08 au
   Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      14000 days (38.33 yr)  
   first obs. used      1981-09-24  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:44:30  

Additional Information
 Earth MOID = .883443 au 
 Jupiter MOID = 2.72197 au 
 T_jup = 3.588 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456619.5 (2013-Nov-23.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1707057927007443 4.4553e-08  
q 1.883849804095005 1.0362e-07 au
tp 2456015.199279470845
(2012-Mar-28.69927947)		 3.5721e-05 TDB
node 53.08999328749102 5.7954e-05 deg
peri 284.3761607125372 5.8794e-05 deg
i 4.526612297305341 3.8365e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      14000 days (38.33 yr)  
   first obs. used      1981-09-24  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:44:30  

Additional Information
 Jupiter MOID = 2.72197 au 
 T_jup = 3.588 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.984930275269692E-15 -4.604510171662447E-15 2.917772966553967E-13 7.64506444720221E-16 6.151491502790326E-14 -2.456701192733981E-15
q -4.604510171662447E-15 1.073650938316347E-14 -7.125300236941748E-13 -1.177005265348E-15 -1.469633393156185E-13 5.798308747735963E-15
tp 2.917772966553967E-13 -7.125300236941748E-13 1.275965892785175E-9 1.249513793688216E-12 3.743396096908497E-10 -8.209240551250431E-13
node 7.64506444720221E-16 -1.177005265348E-15 1.249513793688216E-12 3.358629762478117E-9 -3.347502482541733E-9 -5.954661149843509E-11
peri 6.151491502790326E-14 -1.469633393156185E-13 3.743396096908497E-10 -3.347502482541733E-9 3.456695255703921E-9 5.919168972477537E-11
i -2.456701192733981E-15 5.798308747735963E-15 -8.209240551250431E-13 -5.954661149843509E-11 5.919168972477537E-11 1.471845881155043E-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 15.7   n/a MPO417374  

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

[ show close-approach data ]
Alternate Designations
 1998 RL78 = 1981 SB8 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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