+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   12617 Angelusilesius (5568 P-L) Classification: Main-belt Asteroid          SPK-ID: 2012617 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1229714478639225 4.4747e-08   a 2.640616752334586 1.1326e-08 au q 2.315896287046273 1.1976e-07 au i 8.064436523135996 5.4532e-06 deg node 30.43240172957621 2.5828e-05 deg peri 321.2106696138832 3.2064e-05 deg M 339.0767271823942 2.0318e-05 deg tp 2459091.592706370009 (2020-Aug-30.09270637) 8.8624e-05 TDB period 1567.315714853618 4.29 1.0083e-05 2.761e-08 d yr n .2296920758135975 1.4777e-09 deg/d Q 2.965337217622899 1.2718e-08 au   Orbit Determination Parameters    # obs. used (total)      1785      data-arc span      21840 days (59.79 yr)      first obs. used      1960-10-17      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46083      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 00:35:23   Additional Information  Earth MOID = 1.31756 au   Jupiter MOID = 2.48603 au   T_jup = 3.370  [ 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 13.5   n/a MPO328826   diameter diameter 11.185 km 3.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   geometric albedo albedo 0.055   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   12617 Angelusilesius           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Angelus Silesius (Johannes Scheffler, 1624-1677) was a German baroque poet. His wisdom was expressed in short verses that are still read and used today. His best known collection starts with "Mensch werde wesentlich ..." NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080819/MPCPages.arc Last Updated: 2008-08-25 [ show close-approach data ] Alternate Designations  5568 P-L = 1977 RY = 1986 XB2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-28 01:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin