+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   594 Mireille (A906 FM) Classification: Main-belt Asteroid          SPK-ID: 2000594 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3528378188408756 4.242e-08   a 2.628335012836028 7.1065e-09 au q 1.700959019723859 1.1071e-07 au i 32.58487239772442 3.7954e-06 deg node 155.0925346945058 9.8209e-06 deg peri 76.80162994389271 1.0316e-05 deg M 262.4145695411066 6.0319e-06 deg tp 2459422.392678735681 (2021-Jul-26.89267874) 2.7162e-05 TDB period 1556.393855421106 4.26 6.3123e-06 1.728e-08 d yr n .2313039201138432 9.381e-10 deg/d Q 3.555711005948197 9.614e-09 au   Orbit Determination Parameters    # obs. used (total)      2087      data-arc span      41855 days (114.59 yr)      first obs. used      1906-03-28      last obs. used      2020-10-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .38759      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:27:54   Additional Information  Earth MOID = .923864 au   Jupiter MOID = 2.15458 au   T_jup = 3.100  [ 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 12.1   n/a MPO502158 IRAS observations used: 26 diameter diameter 9.23 km 0.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26 rotation period rot_per 4.966 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Wisniewski, W.Z. (1991) Icarus 90, 117-122.] [Polakis, T.; Skiff, B.A. (2017) Minor Planet Bull. 44, 299-302.] [Benishek, V. (2018) Minor Planet Bull. 45, 82-91.] geometric albedo albedo 0.3255   0.071 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26 B-V BV 0.964   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=31.32 deg. U-B UB 0.588   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=31.32 deg. 594 Mireille (A906 FM)          Discovered 1906-Mar-27 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-26 04:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin