+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17257 Strazzulla (2000 HM25) Classification: Main-belt Asteroid          SPK-ID: 2017257 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1217940594338191 1.904e-08   a 2.685696741782227 1.0053e-08 au q 2.358594833192388 5.2669e-08 au i 12.19019580553691 1.188e-06 deg node 198.0837652479713 3.4993e-06 deg peri 274.4236965174954 7.2317e-06 deg M 356.8459119426575 6.7931e-06 deg tp 2459214.584946397357 (2020-Dec-31.08494640) 3.0349e-05 TDB period 1607.62179459277 4.40 9.0262e-06 2.471e-08 d yr n .2239332666494437 1.2573e-09 deg/d Q 3.012798650372067 1.1277e-08 au   Orbit Determination Parameters    # obs. used (total)      2055      data-arc span      13296 days (36.40 yr)      first obs. used      1984-10-19      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48952      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:58:50   Additional Information  Earth MOID = 1.41213 au   Jupiter MOID = 2.18111 au   T_jup = 3.331  [ 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 13.7   n/a MPO347659   diameter diameter 5.057 km 0.493 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.275   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17257 Strazzulla           Discovered 2000 Apr. 26 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Giovanni ("Gianni") Strazzulla (b. 1951) is senior astronomer at the Experimental Astrophysics Laboratory of Catania Astrophysical Observatory. He is involved in the experimental study of the effects induced by fast ions and ultraviolet Lyman- \alpha photons in solids of astrophysical and planetary interest. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050721/MPCPages.arc Last Updated: 2005-07-21 Alternate Designations  2000 HM25 = 1984 UQ2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 16:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin