+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   725 Amanda (A911 UQ) Classification: Main-belt Asteroid          SPK-ID: 2000725 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .221597881561724 3.2471e-08   a 2.572196946014091 7.0306e-09 au q 2.002203551817832 8.5396e-08 au i 3.79015971067138 2.8145e-06 deg node 68.67918531943486 5.6314e-05 deg peri 323.35554167 5.6779e-05 deg M 114.5145762472995 8.3615e-06 deg tp 2458521.193825328672 (2019-Feb-06.69382533) 3.3901e-05 TDB period 1506.797025638448 4.13 6.1778e-06 1.691e-08 d yr n .2389173816211003 9.7955e-10 deg/d Q 3.14219034021035 8.5885e-09 au   Orbit Determination Parameters    # obs. used (total)      3261      data-arc span      38272 days (104.78 yr)      first obs. used      1915-09-29      last obs. used      2020-07-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41695      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:26:29   Additional Information  Earth MOID = 1.00983 au   Jupiter MOID = 2.29785 au   T_jup = 3.391  [ 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 11.8   n/a MPO502160 IRAS observations used: 3 diameter diameter 23.687 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 3.749 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Di Martino, M.; Dotto, E.; Barucci, M.A.; Fulchignoni, M.; Rotundi, A. (1994) Icarus 109, 210-218.] [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.738   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=20.36 deg. U-B UB 0.417   0.070 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=20.36 deg. Tholen spectral type spec_T CSU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices 725 Amanda (A911 UQ)          Discovered 1911-Oct-21 by Palisa, J. at Vienna Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A911 UQ = 2016 FH6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 17:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin