+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1127 Mimi (1929 AJ) Classification: Main-belt Asteroid          SPK-ID: 2001127 [ 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 46 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2648608976844853 3.099e-08   a 2.594475631845644 8.1537e-09 au q 1.907300486974485 8.1854e-08 au i 14.76725499342858 3.9977e-06 deg node 128.3502828151217 1.405e-05 deg peri 282.7315780982194 1.6203e-05 deg M 44.43848483928748 1.0179e-05 deg tp 2459012.078887762103 (2020-Jun-11.57888776) 4.2708e-05 TDB period 1526.415687910083 4.18 7.1956e-06 1.97e-08 d yr n .2358466326383869 1.1118e-09 deg/d Q 3.281650776716803 1.0313e-08 au   Orbit Determination Parameters    # obs. used (total)      3001      data-arc span      33111 days (90.65 yr)      first obs. used      1930-05-29      last obs. used      2021-01-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .36423      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:52:46   Additional Information  Earth MOID = .979561 au   Jupiter MOID = 2.27558 au   T_jup = 3.322  [ hide covariance matrix ] Orbital Elements at Epoch 2456842.5 (2014-Jul-04.0) TDB Reference: JPL 46 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2647455732173736 3.0927e-08   q 1.907676548061187 8.1651e-08 au tp 2457481.166232523783 (2016-Apr-02.66623252) 3.9386e-05 TDB node 128.6645498439675 1.4074e-05 deg peri 281.7662133364151 1.6221e-05 deg i 14.75274863583407 3.9943e-06 deg   Orbit Determination Parameters    # obs. used (total)      3001      data-arc span      33111 days (90.65 yr)      first obs. used      1930-05-29      last obs. used      2021-01-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .36423      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:52:46   Additional Information  Jupiter MOID = 2.27558 au   T_jup = 3.322  Orbit Covariance (6×6)   e q tp node peri i e 9.564598846739011E-16 -2.518440025927883E-15 -2.146943180424334E-14 1.713508945729961E-16 2.811330248498278E-16 1.125981455336264E-15 q -2.518440025927883E-15 6.666833595499047E-15 1.564732379648922E-13 -8.404959200862278E-16 1.556461004930073E-14 -2.348737069531893E-15 tp -2.146943180424334E-14 1.564732379648922E-13 1.551265924733431E-9 -8.279584482562863E-12 3.311239186217007E-10 2.213317193382227E-13 node 1.713508945729961E-16 -8.404959200862278E-16 -8.279584482562863E-12 1.980638414142042E-10 -1.926803493383593E-10 -3.249965833993438E-12 peri 2.811330248498278E-16 1.556461004930073E-14 3.311239186217007E-10 -1.926803493383593E-10 2.631174663705345E-10 3.072507875426428E-12 i 1.125981455336264E-15 -2.348737069531893E-15 2.213317193382227E-13 -3.249965833993438E-12 3.072507875426428E-12 1.595457890371667E-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 10.6   n/a MPO492763 IRAS observations used: 26 diameter diameter 46.006 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 12.749 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Menke, J. (2005) Minor Planet Bull. 32, 64-66.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2018) Icarus 309, 297-337.] geometric albedo albedo 0.034   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.700   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=11.07, mean=11.07, max.=11.08) deg. U-B UB 0.300   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=11.07, mean=11.07, max.=11.08) deg. Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 1127 Mimi (1929 AJ)          Discovered 1929-Jan-13 by Arend, S. at Uccle Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1929 AJ = 1948 PU = 2019 HA5 = A906 OA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 17:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin