+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1537 Transylvania (1940 QA) Classification: Main-belt Asteroid          SPK-ID: 2001537 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2937364966057238 3.1584e-08   a 3.05909801433273 7.5581e-09 au q 2.160529280829107 9.7229e-08 au i 3.854750426200744 3.4847e-06 deg node 229.9290814639837 4.5877e-05 deg peri 148.3744124764398 4.6146e-05 deg M 327.8366621727371 4.2631e-06 deg tp 2459175.101160780017 (2020-Nov-21.60116078) 2.3291e-05 TDB period 1954.287773812039 5.35 7.2426e-06 1.983e-08 d yr n .1842103321855117 6.8269e-10 deg/d Q 3.957666747836353 9.7781e-09 au   Orbit Determination Parameters    # obs. used (total)      2773      data-arc span      42752 days (117.05 yr)      first obs. used      1903-10-28      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45813      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:01:14   Additional Information  Earth MOID = 1.16393 au   Jupiter MOID = 1.52564 au   T_jup = 3.163  [ 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 12.3   n/a MPO435710   diameter diameter 20.288 km 0.256 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 12. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1537 Transylvania           Discovered 1940 Aug. 27 by G. Strommer at Budapest. Named for the section of the old Hungarian empire in which the discoverer was born. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC 5182 Last Updated: 2006-03-21 [ show close-approach data ] Alternate Designations  1940 QA = 1940 QN = A903 VB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 04:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin