+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1296 Andree (1933 WE) Classification: Main-belt Asteroid          SPK-ID: 2001296 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1437252436859897 3.1826e-08   a 2.417266718456376 6.5344e-09 au q 2.069844470292201 7.8294e-08 au i 4.108858285221089 3.5396e-06 deg node 226.9853558194364 5.0918e-05 deg peri 236.7987244076732 5.2481e-05 deg M 336.3649047088694 1.3275e-05 deg tp 2459090.623934369022 (2020-Aug-29.12393437) 5.074e-05 TDB period 1372.730508305723 3.76 5.5662e-06 1.524e-08 d yr n .2622510374919299 1.0634e-09 deg/d Q 2.764688966620552 7.4736e-09 au   Orbit Determination Parameters    # obs. used (total)      2626      data-arc span      34451 days (94.32 yr)      first obs. used      1925-10-09      last obs. used      2020-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42717      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 15:50:58   Additional Information  Earth MOID = 1.09005 au   Jupiter MOID = 2.38153 au   T_jup = 3.498  [ 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 11.7   n/a MPO416718   diameter diameter 26.298 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 5.18366 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.072   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   1296 Andree (1933 WE)          Discovered 1933-Nov-25 by Boyer, L. at Algiers Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1933 WE = 1925 TA = 1929 TH = 1931 HF  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 13:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin