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18617 Puntel (1998 DY9)
Classification: Main-belt Asteroid          SPK-ID: 2018617
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06445992609350586 4.9211e-08  
a 2.14018597475462 6.2954e-09 au
q 2.00222974499558 1.0392e-07 au
i 3.085524041926489 3.5737e-06 deg
node 303.3607044689668 7.4326e-05 deg
peri 211.0308557308504 7.8431e-05 deg
M 91.06311746020548 2.4321e-05 deg
tp 2458911.221797301991
(2020-Mar-02.72179730)
7.7353e-05 TDB
period 1143.604083363306
3.13
5.0459e-06
1.381e-08
d
yr
n .3147942589897463 1.389e-09 deg/d
Q 2.278142204513661 6.7012e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2045  
   data-arc span      15666 days (42.89 yr)  
   first obs. used      1977-07-20  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46084  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:33:23  

Additional Information
 Earth MOID = 1.01267 au 
 Jupiter MOID = 2.70474 au 
 T_jup = 3.709 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.75   n/a E2021B10  
diameter diameter 2.935 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.391   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18617 Puntel           Discovered 1998 Feb. 24 by M. Boeuf at Les Tardieux.
Nathalie Puntel (b. 1968) is a young, pretty and cheerful French woman who prefers deep-sky pictures to searches for minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 DY9 = 1996 MJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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