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344508 (2002 RQ78)
Classification: Main-belt Asteroid          SPK-ID: 2344508
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198654063663693 7.781e-08  
a 2.179890343893251 1.3211e-08 au
q 1.746846268737612 1.7544e-07 au
i 1.371744814334232 5.1455e-06 deg
node 228.2884386816074 0.00028457 deg
peri 113.3444743653443 0.0002856 deg
M 186.7699589100868 1.9866e-05 deg
tp 2459566.180366921720
(2021-Dec-17.68036692)
6.6888e-05 TDB
period 1175.575153192507
3.22
1.0687e-05
2.926e-08
d
yr
n .3062330800564717 2.7839e-09 deg/d
Q 2.61293441904889 1.5836e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      7386 days (20.22 yr)  
   first obs. used      1999-11-12  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:04:02  

Additional Information
 Earth MOID = .739167 au 
 Jupiter MOID = 2.78503 au 
 T_jup = 3.655 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457577.5 (2016-Jul-08.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .19924757536142 7.8093e-08  
q 1.745265564143126 1.7621e-07 au
tp 2457214.117888186033
(2015-Jul-10.61788819)
6.0041e-05 TDB
node 228.366462421518 0.00028511 deg
peri 113.0939683765122 0.00028612 deg
i 1.369740504375296 5.144e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      7386 days (20.22 yr)  
   first obs. used      1999-11-12  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:04:02  

Additional Information
 Jupiter MOID = 2.78503 au 
 T_jup = 3.655 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.098461583594121E-15 -1.374306642559047E-14 -2.288397549762436E-12 -1.719270335190087E-14 -1.064880182613169E-12 -1.018364766818527E-14
q -1.374306642559047E-14 3.105019491247569E-14 5.072224179651092E-12 4.201310096044703E-14 2.373619380457953E-12 2.301890525899626E-14
tp -2.288397549762436E-12 5.072224179651092E-12 3.604888608421278E-9 1.407669559235177E-11 1.474691434605523E-9 5.037855013623617E-12
node -1.719270335190087E-14 4.201310096044703E-14 1.407669559235177E-11 8.128922233748767E-8 -8.125871524338176E-8 1.431445662669146E-10
peri -1.064880182613169E-12 2.373619380457953E-12 1.474691434605523E-9 -8.125871524338176E-8 8.186671657754182E-8 -1.407526746928512E-10
i -1.018364766818527E-14 2.301890525899626E-14 5.037855013623617E-12 1.431445662669146E-10 -1.407526746928512E-10 2.646048450886636E-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 18.2   n/a MPO455508  

344508 (2002 RQ78)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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