+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1530 Rantaseppa (1938 SG) Classification: Main-belt Asteroid          SPK-ID: 2001530 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1984301024316992 3.5175e-08   a 2.24888679578922 4.3894e-09 au q 1.80263995854347 7.9169e-08 au i 4.421553445663702 3.0223e-06 deg node 285.7817854459499 4.8118e-05 deg peri 85.00107742551394 4.8758e-05 deg M 129.8091846584917 7.1883e-06 deg tp 2458756.326402235761 (2019-Sep-29.82640224) 2.4577e-05 TDB period 1231.827282605659 3.37 3.6065e-06 9.874e-09 d yr n .292248763348137 8.5563e-10 deg/d Q 2.695133633034971 5.2604e-09 au   Orbit Determination Parameters    # obs. used (total)      2709      data-arc span      30075 days (82.34 yr)      first obs. used      1938-09-16      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44653      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:56:08   Additional Information  Earth MOID = .807452 au   Jupiter MOID = 2.79472 au   T_jup = 3.599  [ 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 13.31   n/a E2021B10   diameter diameter 5.044 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 3.5258 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm] [Aznar, A.M. (2017) Minor Planet Bull. 44, 139-141.] [Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.400   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   1530 Rantaseppa (1938 SG)          Discovered 1938-Sep-16 by Vaisala, Y. at Turku Independent discovery Sept. 18 by E. Delporte, Uccle, was announced first. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-08 16:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin