+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4018 Bratislava (1980 YM) Classification: Main-belt Asteroid          SPK-ID: 2004018 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .16404483457895 4.4112e-08   a 2.580590190550214 8.9899e-09 au q 2.157257699625343 1.13e-07 au i 3.432310895124285 4.1228e-06 deg node 252.2891463702084 7.0965e-05 deg peri 158.1653309680433 7.192e-05 deg M 227.5208966481929 1.2231e-05 deg tp 2459557.713807208831 (2021-Dec-09.21380721) 5.2353e-05 TDB period 1514.178202599096 4.15 7.9123e-06 2.166e-08 d yr n .2377527290922942 1.2424e-09 deg/d Q 3.003922681475085 1.0465e-08 au   Orbit Determination Parameters    # obs. used (total)      1845      data-arc span      15492 days (42.41 yr)      first obs. used      1978-05-09      last obs. used      2020-10-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50773      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:55:08   Additional Information  Earth MOID = 1.16837 au   Jupiter MOID = 2.36183 au   T_jup = 3.403  [ 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 13.57   n/a E2021B10   diameter diameter 11.577 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   4018 Bratislava (1980 YM)          Discovered 1980-Dec-30 by Mrkos, A. at Klet Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1913-Jul-24 18:43 < 00:01 Juno 0.0172170713179102 0.0172051141913522 0.0172290291904349 4.85378150164663 4.85378135606504 2419973.279756606 0.603002099315004 622.150692570752 30.5240373714322 -16.727754993796 24588.2748323701 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:55:14 2020-Nov-13 03:55 1996-Jun-05 09:25 < 00:01 Juno 0.0126555769942056 0.012654566639295 0.0126565874549919 4.75380982232205 4.75380962010293 2450239.892523929 0.415657698267718 88.8238995257365 30.9820211773053 61.5253209847943 54627.0875365836 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:55:14 2020-Nov-13 03:55 2027-Jul-27 18:21 < 00:01 Hygie 0.0463699317473131 0.0463686584461961 0.0463712050582422 3.70400766963758 3.70400744468338 2461614.264783596 0.829475179684112 117.977731832814 59.6455855406383 -77.8443367545245 114126.251880375 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:55:14 2020-Nov-13 03:55 2079-Apr-17 12:40 < 00:01 Juno 0.0342340103694571 0.0342252027370922 0.034242818659007 4.65835420996573 4.65835413367782 2480506.028083410 0.758362654462705 498.750660939795 30.8611164977419 28.4198337926052 79433.2746720599 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:55:14 2020-Nov-13 03:55 Alternate Designations  1980 YM = 1978 JP3 = 1979 OH16 = 1981 AJ1 = 1981 BE  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 06:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin