+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1364 Safara (1935 VB) Classification: Main-belt Asteroid          SPK-ID: 2001364 [ 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 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0663089565677402 3.4733e-08   a 3.014090588809691 1.4792e-08 au q 2.814229386865075 1.0508e-07 au i 11.48612940556996 4.6251e-06 deg node 63.9799975410523 2.1637e-05 deg peri 221.0391288277718 4.663e-05 deg M 196.473002219119 4.341e-05 deg tp 2459868.700119042930 (2022-Oct-16.20011904) 0.00023206 TDB period 1911.317685133929 5.23 1.407e-05 3.852e-08 d yr n .188351733884979 1.3865e-09 deg/d Q 3.213951790754307 1.5773e-08 au   Orbit Determination Parameters    # obs. used (total)      2407      data-arc span      32393 days (88.69 yr)      first obs. used      1932-03-10      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44146      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:00:05   Additional Information  Earth MOID = 1.80889 au   Jupiter MOID = 1.87959 au   T_jup = 3.215  [ 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 MPO267712   diameter diameter 21.197 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 7.25 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2010) Minor Planet Bull. 37, 112-118.] [Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.087   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1364 Safara (1935 VB)          Discovered 1935-Nov-18 by Boyer, L. at Algiers Discovery is clearly Nov. 18. By error the preliminary designation 1935 VB instead of a W designation was assigned. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1935 VB = 1932 EK  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-25 21:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin