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212242 (2005 JL49)
Classification: Main-belt Asteroid          SPK-ID: 2212242
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05387831511359845 7.0422e-08  
a 2.568618644705357 2.2353e-08 au
q 2.430225799959258 1.8276e-07 au
i 3.404087671176199 6.753e-06 deg
node 127.2151795023576 0.0001028 deg
peri 209.0240958117007 0.00011355 deg
M 37.66903567395893 4.8829e-05 deg
tp 2458443.163358879634
(2018-Nov-20.66335888)
0.00020335 TDB
period 1503.653857602954
4.12
1.9628e-05
5.374e-08
d
yr
n .2394168033950932 3.1252e-09 deg/d
Q 2.707011489451457 2.3557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      7235 days (19.81 yr)  
   first obs. used      2000-02-04  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64847  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:52:37  

Additional Information
 Earth MOID = 1.41978 au 
 Jupiter MOID = 2.48111 au 
 T_jup = 3.426 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456901.5 (2014-Sep-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05529538477361663 7.0672e-08  
q 2.426810204049131 1.838e-07 au
tp 2456934.907007439277
(2014-Oct-04.40700744)
0.00019261 TDB
node 127.280575010201 0.00010275 deg
peri 207.945710116197 0.00011292 deg
i 3.405086642865251 6.7584e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      7235 days (19.81 yr)  
   first obs. used      2000-02-04  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64847  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:52:37  

Additional Information
 Jupiter MOID = 2.48111 au 
 T_jup = 3.426 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.994480614476764E-15 -1.290261365151367E-14 1.480824435219321E-12 7.485637523507854E-14 3.874877394913429E-13 5.740432424657172E-15
q -1.290261365151367E-14 3.378221604489788E-14 -2.988859829040404E-12 -1.949137916452979E-13 -8.001556089932498E-13 -1.431156093127322E-14
tp 1.480824435219321E-12 -2.988859829040404E-12 3.710015435099622E-8 -5.158428833740855E-11 9.065820239521145E-9 5.445161221595549E-12
node 7.485637523507854E-14 -1.949137916452979E-13 -5.158428833740855E-11 1.055703707616125E-8 -1.054858447698116E-8 2.826296836684104E-10
peri 3.874877394913429E-13 -8.001556089932498E-13 9.065820239521145E-9 -1.054858447698116E-8 1.274990444369255E-8 -2.806840861713492E-10
i 5.740432424657172E-15 -1.431156093127322E-14 5.445161221595549E-12 2.826296836684104E-10 -2.806840861713492E-10 4.567560268053584E-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 16.9   n/a MPO454524  

212242 (2005 JL49)          Discovered 2005-May-04 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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