+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1828 Kashirina (1966 PH) Classification: Main-belt Asteroid          SPK-ID: 2001828 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .106815640180099 3.1589e-08   a 3.061145618748935 1.3718e-08 au q 2.734167389797762 9.6743e-08 au i 14.27936598466058 3.6723e-06 deg node 184.3798240410813 1.4596e-05 deg peri 222.7745307820476 2.2296e-05 deg M 319.936441566846 1.7602e-05 deg tp 2459218.206517577896 (2021-Jan-03.70651758) 9.5923e-05 TDB period 1956.250253177339 5.36 1.315e-05 3.6e-08 d yr n .1840255352888969 1.237e-09 deg/d Q 3.388123847700107 1.5183e-08 au   Orbit Determination Parameters    # obs. used (total)      2547      data-arc span      25492 days (69.79 yr)      first obs. used      1950-08-22      last obs. used      2020-06-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43634      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:37:07   Additional Information  Earth MOID = 1.75921 au   Jupiter MOID = 2.11236 au   T_jup = 3.178  [ 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 11.3   n/a MPO267714   diameter diameter 27.016 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 14.838 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Warner, B.D. (2009) Minor Planet Bull. 36, 7-13.] geometric albedo albedo 0.073   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1828 Kashirina (1966 PH)          Discovered 1966-Aug-14 by Chernykh, L. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1966 PH = 1950 QG = 1950 RC1 = 1971 QB1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 13:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin