+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190283 Schielicke (1991 RE3) Classification: Main-belt Asteroid          SPK-ID: 2190283 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2123663965299067 5.4194e-08   a 2.245269056902871 8.5854e-09 au q 1.768449358048306 1.1974e-07 au i 4.447495340442492 5.8785e-06 deg node 317.4188273602638 5.5834e-05 deg peri 26.6287679477376 5.6751e-05 deg M 258.6786991344061 1.2247e-05 deg tp 2459546.359150119737 (2021-Nov-27.85915012) 4.3119e-05 TDB period 1228.856054742834 3.36 7.0483e-06 1.93e-08 d yr n .2929553861174881 1.6803e-09 deg/d Q 2.722088755757436 1.0409e-08 au   Orbit Determination Parameters    # obs. used (total)      393      data-arc span      10446 days (28.60 yr)      first obs. used      1991-09-12      last obs. used      2020-04-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51902      source      ORB      producer      Otto Matic      solution date      2020-May-21 05:13:38   Additional Information  Earth MOID = .760078 au   Jupiter MOID = 2.68813 au   T_jup = 3.597  [ 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 16.8   n/a MPO459855   190283 Schielicke           Discovered 1991 Sept. 12 by F. Borngen and L. D. Schmadel at Tautenburg. Reinhard E. Schielicke (b. 1940) is a German engineer who worked in astronomy as an associate of the University Observatory of Jena. He was a member of the council of the Astronomische Gesellschaft. He is the editor of numerous astrophysical books as well as the (co-)author of astronomy-historical books. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2017-12-03 Last Updated: 2017-12-07 [ show close-approach data ] Alternate Designations  1991 RE3 = 2001 QN9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 06:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin