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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950345141568288 4.2411e-08  
a 2.36478375913378 8.435e-09 au
q 1.903569307585164 1.0188e-07 au
i 2.539643638743953 4.3846e-06 deg
node 164.916496437976 7.9167e-05 deg
peri 146.2906623610585 7.9972e-05 deg
M 37.69566234890015 8.9079e-06 deg
tp 2459061.416869939184
(2020-Jul-30.91686994)		 3.31e-05 TDB
period 1328.267596373852
3.64		 7.1067e-06
1.946e-08		 d
yr
n .2710297239673646 1.4501e-09 deg/d
Q 2.825998210682397 1.008e-08 au
   Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      9171 days (25.11 yr)  
   first obs. used      1995-10-18  
   last obs. used      2020-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52511  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:15:07  

Additional Information
 Earth MOID = .887956 au 
 Jupiter MOID = 2.44665 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457588.5 (2016-Jul-19.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945280459316216 4.2366e-08  
q 1.904944737667017 1.0173e-07 au
tp 2457733.592481961985
(2016-Dec-11.09248196)		 3.6272e-05 TDB
node 164.9497064752643 7.92e-05 deg
peri 146.471317058438 8.0011e-05 deg
i 2.53881868039837 4.3832e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      9171 days (25.11 yr)  
   first obs. used      1995-10-18  
   last obs. used      2020-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52511  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:15:07  

Additional Information
 Jupiter MOID = 2.44665 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.794842653995056E-15 -4.300573879192924E-15 1.908862395497009E-13 -1.314428622422917E-14 4.787271365542589E-14 -2.27009154347174E-15
q -4.300573879192924E-15 1.03490639815859E-14 -5.751920766242774E-13 3.022475567712475E-14 -1.509130912461025E-13 5.473918048269742E-15
tp 1.908862395497009E-13 -5.751920766242774E-13 1.315657158736444E-9 6.201128595014973E-12 4.218945174976359E-10 -8.585607070290946E-13
node -1.314428622422917E-14 3.022475567712475E-14 6.201128595014973E-12 6.272668638187176E-9 -6.263632309387883E-9 -9.151097219656838E-11
peri 4.787271365542589E-14 -1.509130912461025E-13 4.218945174976359E-10 -6.263632309387883E-9 6.401814683965955E-9 9.120152601270402E-11
i -2.27009154347174E-15 5.473918048269742E-15 -8.585607070290946E-13 -9.151097219656838E-11 9.120152601270402E-11 1.921201457081498E-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 16.76   n/a E2021B10  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Jan-01 03:22 < 00:01 Amphi 0.0105181805365042 0.010516287426608 0.010520088859598 4.87941844687201 4.87941833486006 2416115.640586214 0.56312759511111 726.135761786318 45.715851737036 -83.4237691274653 34179.5572383539 T 25 CATAB v2.0f-lin.ifort 2021-Feb-24 07:15:08 2021-Feb-24 07:15

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