+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   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 2459000.5 (2020-May-31.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06454530060477724 4.9193e-08   a 2.140167034052203 6.3164e-09 au q 2.002029309494869 1.0395e-07 au i 3.085537904426346 3.5736e-06 deg node 303.3609936615622 7.4345e-05 deg peri 210.9799855765632 7.844e-05 deg M 28.14387674619659 2.4317e-05 deg tp 2458911.097152482184 (2020-Mar-02.59715248) 7.728e-05 TDB period 1143.588902007369 3.13 5.0627e-06 1.386e-08 d yr n .3147984379422389 1.3936e-09 deg/d Q 2.278304758609536 6.7241e-09 au   Orbit Determination Parameters    # obs. used (total)      2044      data-arc span      15666 days (42.89 yr)      first obs. used      1977-07-20      last obs. used      2020-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46089      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 18:24:03   Additional Information  Earth MOID = 1.0127 au   Jupiter MOID = 2.7056 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 14.7   n/a MPO452434   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.arc Last Updated: 2009-05-11 Alternate Designations  1998 DY9 = 1996 MJ  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-28 11:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin