+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   882 Swetlana (A917 PB) Classification: Main-belt Asteroid          SPK-ID: 2000882 [ 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 .2668070227217718 3.2186e-08   a 3.123678595649475 1.2362e-08 au q 2.290259209604513 1.0188e-07 au i 6.125591994226618 3.3606e-06 deg node 256.3018449431461 3.7658e-05 deg peri 126.4370947049722 3.8141e-05 deg M 151.7002609738728 7.7212e-06 deg tp 2458150.768405172144 (2018-Feb-01.26840517) 4.0715e-05 TDB period 2016.498667663557 5.52 1.1971e-05 3.277e-08 d yr n .178527268960271 1.0598e-09 deg/d Q 3.957097981694437 1.5661e-08 au   Orbit Determination Parameters    # obs. used (total)      2874      data-arc span      37558 days (102.83 yr)      first obs. used      1917-08-18      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41384      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:22:27   Additional Information  Earth MOID = 1.30042 au   Jupiter MOID = 1.57213 au   T_jup = 3.151  [ 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 10.7   n/a MPO452170   diameter diameter 42.440 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 29.867 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Polakis, T. (2018) Minor Planet Bull. 45, 112-115.] geometric albedo albedo 0.062   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   882 Swetlana (A917 PB)          Discovered 1917-Aug-15 by Neujmin, G. at Simeis Independent discovery Aug. 18 by M. Wolf, Heidelberg, was announced first. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A917 PB = 1967 TQ  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-04 18:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin