+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1437988349199321 3.0149e-08   a 2.417480639499594 6.0279e-09 au q 2.06984974009806 7.3575e-08 au i 4.108593032733332 3.3287e-06 deg node 226.9797509292407 5.0689e-05 deg peri 236.7644885495081 5.2211e-05 deg M 28.84076474319254 1.2715e-05 deg tp 2459090.511518776448 (2020-Aug-29.01151878) 4.8386e-05 TDB period 1372.912736297143 3.76 5.135e-06 1.406e-08 d yr n .2622162286664694 9.8075e-10 deg/d Q 2.765111538901129 6.8947e-09 au   Orbit Determination Parameters    # obs. used (total)      2918      data-arc span      34800 days (95.28 yr)      first obs. used      1925-10-09      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41572      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:54:09   Additional Information  Earth MOID = 1.08988 au   Jupiter MOID = 2.38097 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 11.77   n/a E2021B10   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. 2020-October); 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 ] 2021-Mar-03 00:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin