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18219 (6260 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018219
[ 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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04678587099265178 5.1578e-08  
a 3.182063955372031 1.8773e-08 au
q 3.033188321665628 1.6288e-07 au
i 16.21933110837707 5.614e-06 deg
node 353.4600455254383 1.3168e-05 deg
peri 173.3130222792724 4.5368e-05 deg
M 28.07383039277977 4.2015e-05 deg
tp 2458838.818267526104
(2019-Dec-21.31826753)		 0.00024217 TDB
period 2073.298259491246
5.68		 1.8348e-05
5.023e-08		 d
yr
n .1736363778592755 1.5366e-09 deg/d
Q 3.330939589078434 1.9652e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2128  
   data-arc span      21867 days (59.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:16:16  

Additional Information
 Earth MOID = 2.03963 au 
 Jupiter MOID = 1.64 au 
 T_jup = 3.135 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457254.5 (2015-Aug-20.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04791968686501153 5.1416e-08  
q 3.029931407525747 1.6236e-07 au
tp 2456758.105695017324
(2014-Apr-10.60569502)		 0.0002408 TDB
node 353.4877623118532 1.3169e-05 deg
peri 172.2737474845013 4.4621e-05 deg
i 16.21918620482476 5.6138e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2128  
   data-arc span      21867 days (59.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:16:16  

Additional Information
 Jupiter MOID = 1.64 au 
 T_jup = 3.135 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.643609970162516E-15 -8.298208286042099E-15 2.532988411716765E-12 4.016215436459395E-15 5.044561950175431E-13 -4.557447543484207E-17
q -8.298208286042099E-15 2.635948111190875E-14 -8.955196285241615E-12 -9.452681069930136E-15 -1.751048002474918E-12 1.144119836053782E-15
tp 2.532988411716765E-12 -8.955196285241615E-12 5.79825054110449E-8 -2.726245293990411E-12 1.027598338013602E-8 1.658989361586497E-11
node 4.016215436459395E-15 -9.452681069930136E-15 -2.726245293990411E-12 1.734151475160917E-10 -1.660891979443052E-10 5.924748494139261E-12
peri 5.044561950175431E-13 -1.751048002474918E-12 1.027598338013602E-8 -1.660891979443052E-10 1.991006807710227E-9 -2.648032339235793E-12
i -4.557447543484207E-17 1.144119836053782E-15 1.658989361586497E-11 5.924748494139261E-12 -2.648032339235793E-12 3.151424263960147E-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 12.1   n/a MPO395178  
diameter diameter 22.669 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.710 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Clark, M. (2015) Minor Planet Bull. 42, 15-20.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.064   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18219 (6260 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 6260 P-L = 1994 SQ 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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