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78441 (2002 RQ13)
Classification: Main-belt Asteroid          SPK-ID: 2078441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953023595125126 4.24e-08  
a 2.365602730053447 8.4519e-09 au
q 1.903594935204768 1.0195e-07 au
i 2.539055863745169 4.3858e-06 deg
node 164.923023586761 7.9324e-05 deg
peri 146.3338149001717 8.0126e-05 deg
M 343.4642700313478 8.9854e-06 deg
tp 2459061.542458519869
(2020-Jul-31.04245852)
3.3063e-05 TDB
period 1328.957663726537
3.64
7.1222e-06
1.95e-08
d
yr
n .2708889905420479 1.4518e-09 deg/d
Q 2.827610524902127 1.0103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      9144 days (25.03 yr)  
   first obs. used      1995-10-18  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:50  

Additional Information
 Earth MOID = .889976 au 
 Jupiter MOID = 2.44578 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457581.5 (2016-Jul-12.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945255054974365 4.239e-08  
q 1.904947270884772 1.0179e-07 au
tp 2457733.592364466266
(2016-Dec-11.09236447)
3.6274e-05 TDB
node 164.9498184728522 7.9332e-05 deg
peri 146.4710374633642 8.0142e-05 deg
i 2.538818654555345 4.3851e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      9144 days (25.03 yr)  
   first obs. used      1995-10-18  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:50  

Additional Information
 Jupiter MOID = 2.44578 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.796911159538453E-15 -4.305630475194648E-15 1.903899375609922E-13 -1.34099510971786E-14 4.807737233360862E-14 -2.26405884712791E-15
q -4.305630475194648E-15 1.03614360059004E-14 -5.739364779040241E-13 3.087377783708492E-14 -1.514098032424973E-13 5.459295832119638E-15
tp 1.903899375609922E-13 -5.739364779040241E-13 1.315795871658835E-9 6.127531767951845E-12 4.219890231358957E-10 -8.561327957842579E-13
node -1.34099510971786E-14 3.087377783708492E-14 6.127531767951845E-12 6.293631486174125E-9 -6.284598898311439E-9 -9.210688010990965E-11
peri 4.807737233360862E-14 -1.514098032424973E-13 4.219890231358957E-10 -6.284598898311439E-9 6.422789549997921E-9 9.179757080207562E-11
i -2.26405884712791E-15 5.459295832119638E-15 -8.561327957842579E-13 -9.210688010990965E-11 9.179757080207562E-11 1.92289482932131E-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 16.6   n/a MPO432334  

78441 (2002 RQ13)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 RQ13 = 1995 UW54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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