+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   574 Reginhild (A905 SH) Classification: Main-belt Asteroid          SPK-ID: 2000574 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2384237459226616 2.8418e-08   a 2.252975116268121 4.3564e-09 au q 1.715812349576931 6.4117e-08 au i 5.684789644044792 4.184e-06 deg node 336.6525415960562 3.1962e-05 deg peri 77.07171353123823 3.3317e-05 deg M 297.5826564117217 8.2188e-06 deg tp 2459214.658738659855 (2020-Dec-31.15873866) 2.8247e-05 TDB period 1235.187873840026 3.38 3.5826e-06 9.809e-09 d yr n .2914536384500038 8.4534e-10 deg/d Q 2.79013788295931 5.3951e-09 au   Orbit Determination Parameters    # obs. used (total)      2257      data-arc span      42039 days (115.10 yr)      first obs. used      1905-09-19      last obs. used      2020-10-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37625      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:28:08   Additional Information  Earth MOID = .737691 au   Jupiter MOID = 2.6113 au   T_jup = 3.581  [ hide covariance matrix ] Orbital Elements at Epoch 2456567.5 (2013-Oct-02.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .239354273613605 2.8574e-08   q 1.713425916858913 6.4563e-08 au tp 2456744.134063366829 (2014-Mar-27.63406337) 2.794e-05 TDB node 336.8191292877092 3.1996e-05 deg peri 76.81833434429925 3.3314e-05 deg i 5.682881937257086 4.1829e-06 deg   Orbit Determination Parameters    # obs. used (total)      2257      data-arc span      42039 days (115.10 yr)      first obs. used      1905-09-19      last obs. used      2020-10-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37625      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:28:08   Additional Information  Jupiter MOID = 2.6113 au   T_jup = 3.581  Orbit Covariance (6×6)   e q tp node peri i e 8.164939650401627E-16 -1.842485597527057E-15 -2.291737874057038E-13 5.101329863371307E-15 -8.402041811916779E-14 1.373231054195569E-16 q -1.842485597527057E-15 4.168392829498478E-15 5.029151714169232E-13 -1.135457470226575E-14 1.845893758936714E-13 -1.960506477534602E-16 tp -2.291737874057038E-13 5.029151714169232E-13 7.806190008443977E-10 -1.111196246801283E-11 2.658633801098739E-10 -1.050126275089192E-12 node 5.101329863371307E-15 -1.135457470226575E-14 -1.111196246801283E-11 1.023751210104001E-9 -1.021773853506053E-9 2.28187673318576E-11 peri -8.402041811916779E-14 1.845893758936714E-13 2.658633801098739E-10 -1.021773853506053E-9 1.109825984626897E-9 -2.302759028875777E-11 i 1.373231054195569E-16 -1.960506477534602E-16 -1.050126275089192E-12 2.28187673318576E-11 -2.302759028875777E-11 1.749637421083064E-11 [ 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 12.30   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4 diameter diameter 8.456 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 14.339 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Pilcher, F. (2011) Minor Planet Bull. 38, 76-78.] geometric albedo albedo 0.298   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979) 574 Reginhild (A905 SH)          Discovered 1905-Sep-19 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2006-Jan-04 12:48 00:01 Amphi 0.0284821349423987 0.0284815117316476 0.0284827581532522 1.99751160321154 1.99751150216739 2453740.033649073 1.31462477049371 51.5490613189188 30.9461880861095 -87.2232715940142 137300.879620481 T 35 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:14 2020-Nov-13 04:28 Alternate Designations  A905 SH = 1947 BB = A912 YB = A922 TB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-24 23:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin