+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2002 Euler (1973 QQ1) Classification: Main-belt Asteroid          SPK-ID: 2002002 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06829102267531104 3.2724e-08   a 2.417759080615095 8.0445e-09 au q 2.25264784041737 8.0235e-08 au i 8.50015791513604 3.9134e-06 deg node 178.6292519845586 2.3713e-05 deg peri 53.47369148538049 3.7469e-05 deg M 262.370873743753 2.9694e-05 deg tp 2459372.887301739084 (2021-Jun-07.38730174) 0.00011377 TDB period 1373.149937593466 3.76 6.8532e-06 1.876e-08 d yr n .2621709327904301 1.3085e-09 deg/d Q 2.58287032081282 8.5938e-09 au   Orbit Determination Parameters    # obs. used (total)      2739      data-arc span      28701 days (78.58 yr)      first obs. used      1942-04-17      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44372      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 19:41:33   Additional Information  Earth MOID = 1.25493 au   Jupiter MOID = 2.40224 au   T_jup = 3.497  [ show covariance matrix ] [ 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 12.4   n/a MPO313434   diameter diameter 19.773 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 5.9929 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm] [Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] [Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm] [Oey, J. (2016) Minor Planet Bull. 43, 45-51.] geometric albedo albedo 0.042   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2002 Euler (1973 QQ1)          Discovered 1973-Aug-29 by Smirnova, T. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1973 QQ1 = 1938 DW = 1942 GJ = 1953 EB = 1973 SJ2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 12:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin