+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1216 Askania (1932 BL) Classification: Main-belt Asteroid          SPK-ID: 2001216 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1794421695495353 3.2471e-08   a 2.232023315052252 5.3806e-09 au q 1.83150420891413 7.2502e-08 au i 7.602144983995252 3.2664e-06 deg node 121.5875270625188 3.2153e-05 deg peri 144.5404162492509 3.4497e-05 deg M 69.97701801814975 1.3913e-05 deg tp 2458763.744842805551 (2019-Oct-07.24484281) 4.6885e-05 TDB period 1217.997837059807 3.33 4.4042e-06 1.206e-08 d yr n .2955670273348138 1.0688e-09 deg/d Q 2.632542421190374 6.3461e-09 au   Orbit Determination Parameters    # obs. used (total)      2712      data-arc span      41749 days (114.30 yr)      first obs. used      1906-07-29      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39679      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:59:14   Additional Information  Earth MOID = .821448 au   Jupiter MOID = 2.47209 au   T_jup = 3.609  [ 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 12.2   n/a MPO492764   diameter diameter 10.533 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 6.536 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Menke, J.; Cooney, W.; Gross, J.; Terrell, D. (2008) Minor Planet Bull. 35, 155-160.] geometric albedo albedo 0.064   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.903   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.60 deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 1216 Askania (1932 BL)          Discovered 1932-Jan-29 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1932 BL = 1952 DH = 1984 YY6 = A909 GF  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-25 21:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin