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181419 Dragonera (2006 SN218)
Classification: Main-belt Asteroid          SPK-ID: 2181419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .226626837447454 4.4714e-08  
a 2.702624394412834 1.1847e-08 au
q 2.090137175098712 1.2091e-07 au
i 9.789915845726762 4.4188e-06 deg
node 44.10594007601388 2.5688e-05 deg
peri 339.5843617133008 2.7262e-05 deg
M 88.10426124909003 8.2724e-06 deg
tp 2458803.334625672400
(2019-Nov-15.83462567)
3.7239e-05 TDB
period 1622.844715236891
4.44
1.0671e-05
2.922e-08
d
yr
n .2218326846801543 1.4586e-09 deg/d
Q 3.315111613726955 1.4532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      9508 days (26.03 yr)  
   first obs. used      1995-04-07  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:32  

Additional Information
 Earth MOID = 1.09626 au 
 Jupiter MOID = 2.14345 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457583.5 (2016-Jul-14.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .22719510881893 4.5535e-08  
q 2.088064417224309 1.2332e-07 au
tp 2457174.356040924797
(2015-May-31.85604092)
3.8105e-05 TDB
node 44.17873736857859 2.5728e-05 deg
peri 338.5218005237774 2.7257e-05 deg
i 9.787412169281623 4.4234e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      9508 days (26.03 yr)  
   first obs. used      1995-04-07  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:32  

Additional Information
 Jupiter MOID = 2.14345 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.073437458807379E-15 -5.600557181064486E-15 -7.443868694297179E-13 -1.295275685457376E-15 -2.058032633119701E-13 -3.234242017803774E-16
q -5.600557181064486E-15 1.520814862718962E-14 1.935118181611104E-12 3.435310252845587E-15 5.426195036209325E-13 1.028129064649241E-15
tp -7.443868694297179E-13 1.935118181611104E-12 1.451964675753009E-9 4.55490961148665E-12 3.628710509731873E-10 -5.119376440555754E-13
node -1.295275685457376E-15 3.435310252845587E-15 4.55490961148665E-12 6.619536714762547E-10 -6.512575950655909E-10 -4.214043614482137E-11
peri -2.058032633119701E-13 5.426195036209325E-13 3.628710509731873E-10 -6.512575950655909E-10 7.429631299154411E-10 4.139537445105229E-11
i -3.234242017803774E-16 1.028129064649241E-15 -5.119376440555754E-13 -4.214043614482137E-11 4.139537445105229E-11 1.956673438234034E-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 15.97   n/a MPCxxxxx  
diameter diameter 4.029 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181419 Dragonera           Discovered 2006 Sept. 28 at OAM Observatory, La Sagra.
Sa Dragonera is a small island in the Balearic Islands, 3.2 km long and 500 meters high. It is a declared natural park and home to the endemic lizard Sargantana Balear (Podarcis lilfordi).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-12-03Last Updated: 2017-12-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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