+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1702 Kalahari (A924 NC) Classification: Main-belt Asteroid          SPK-ID: 2001702 [ 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 77 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1441567061365946 3.4794e-08   a 2.856185237117266 1.1495e-08 au q 2.444446981218473 1.0406e-07 au i 9.965857691413511 3.4744e-06 deg node 103.8762825311826 2.115e-05 deg peri 241.8740052090266 2.4607e-05 deg M 272.4924466645518 1.3912e-05 deg tp 2459429.069265332675 (2021-Aug-02.56926533) 6.9034e-05 TDB period 1763.104208025712 4.83 1.0644e-05 2.914e-08 d yr n .2041853217531145 1.2327e-09 deg/d Q 3.26792349301606 1.3152e-08 au   Orbit Determination Parameters    # obs. used (total)      3188      data-arc span      26402 days (72.28 yr)      first obs. used      1948-07-05      last obs. used      2020-10-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39159      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:16:20   Additional Information  Earth MOID = 1.45516 au   Jupiter MOID = 2.15945 au   T_jup = 3.266  [ 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 11.1   n/a MPO473787 IRAS observations used: 6 diameter diameter 34.645 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 21.153 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Oey, J. (2012) Minor Planet Bull. 39, 145-147.] [Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Devogele, M.; Tanga, P.; Bendjoya, P.; Rivet, J.P.; et al. (2017) ArXiv:1707.07503.] geometric albedo albedo 0.065   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.735   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=12.04, mean=12.05, max.=12.06) deg. U-B UB 0.270   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=12.06 deg. Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices SMASSII spectral type spec_B L   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1702 Kalahari (A924 NC)          Discovered 1924-Jul-07 by Hertzsprung, E. at Johannesburg (LS) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A924 NC = 1948 NE = 1953 OE = 1962 JN = 1964 YM  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 06:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin