+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1069488810769657 3.1097e-08   a 3.061465097683205 1.1419e-08 au q 2.734044831029803 9.6298e-08 au i 14.27890875619486 3.4902e-06 deg node 184.3792855634723 1.2016e-05 deg peri 222.8154370917646 1.9227e-05 deg M 356.7117473091102 1.3751e-05 deg tp 2459218.371256132355 (2021-Jan-03.87125613) 7.471e-05 TDB period 1956.556509623584 5.36 1.0946e-05 2.997e-08 d yr n .1839967300864003 1.0294e-09 deg/d Q 3.388885364336607 1.264e-08 au   Orbit Determination Parameters    # obs. used (total)      3112      data-arc span      25717 days (70.41 yr)      first obs. used      1950-08-22      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40519      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:58:27   Additional Information  Earth MOID = 1.75808 au   Jupiter MOID = 2.11286 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 11.39   n/a E2021B10   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. 2020-October); 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 ] 2021-Mar-03 00:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin