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JPL Small-Body Database Browser
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442278 (2011 RL)
Classification: Main-belt Asteroid          SPK-ID: 2442278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3037305151531247 1.6993e-07  
a 2.483253098379504 3.2329e-08 au
q 1.729013355553105 4.03e-07 au
i 2.194983285295677 8.4943e-06 deg
node 71.39814925383986 0.00023229 deg
peri 286.271078751443 0.00023514 deg
M 336.385666374814 2.296e-05 deg
tp 2458694.256869889853
(2019-Jul-29.75686989)
9.2224e-05 TDB
period 1429.32143231635
3.91
2.7912e-05
7.642e-08
d
yr
n .2518677687611428 4.9185e-09 deg/d
Q 3.237492841205905 4.2148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      4492 days (12.30 yr)  
   first obs. used      2007-08-08  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44057  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:10:54  

Additional Information
 Earth MOID = .725903 au 
 Jupiter MOID = 2.21041 au 
 T_jup = 3.411 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457514.5 (2016-May-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3061755600730456 1.709e-07  
q 1.721714904525549 4.0655e-07 au
tp 2457264.275198152144
(2015-Aug-29.77519815)
7.6356e-05 TDB
node 71.41108593997922 0.00023245 deg
peri 286.115931148162 0.00023522 deg
i 2.195587746871644 8.5021e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      4492 days (12.30 yr)  
   first obs. used      2007-08-08  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44057  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:10:54  

Additional Information
 Jupiter MOID = 2.21041 au 
 T_jup = 3.411 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.920688775644014E-14 -6.945014933314798E-14 4.702758763354888E-12 -5.914245223597113E-14 8.917945041084044E-13 -9.100046639382651E-14
q -6.945014933314798E-14 1.652797804306308E-13 -1.110372003088519E-11 1.344752503279846E-13 -2.067337273262004E-12 2.163808439464395E-13
tp 4.702758763354888E-12 -1.110372003088519E-11 5.830309553690926E-9 -2.546947140991237E-10 2.75042190751051E-9 -1.479879214210087E-11
node -5.914245223597113E-14 1.344752503279846E-13 -2.546947140991237E-10 5.40346056128237E-8 -5.411188657446934E-8 -1.552363117794714E-9
peri 8.917945041084044E-13 -2.067337273262004E-12 2.75042190751051E-9 -5.411188657446934E-8 5.532870681972082E-8 1.548591587764621E-9
i -9.100046639382651E-14 2.163808439464395E-13 -1.479879214210087E-11 -1.552363117794714E-9 1.548591587764621E-9 7.228563320934362E-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 17.8   n/a MPO361008  

442278 (2011 RL)          Discovered 2007-Aug-08 by LINEAR at Socorro
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 RL = 2007 PQ13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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