+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22901 Ivanbella (1999 TY15) Classification: Main-belt Asteroid          SPK-ID: 2022901 [ 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 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1444790097352243 2.0272e-08   a 2.564525198471748 8.1473e-09 au q 2.19400513735552 5.3508e-08 au i 5.69167255636332 3.1445e-07 deg node 199.4614295391533 4.2417e-06 deg peri 205.1403586292868 7.5981e-06 deg M 37.24092085679302 8.1812e-06 deg tp 2459045.323199410274 (2020-Jul-14.82319941) 3.3899e-05 TDB period 1500.060871940321 4.11 7.1484e-06 1.957e-08 d yr n .2399902608847745 1.1436e-09 deg/d Q 2.935045259587975 9.3244e-09 au   Orbit Determination Parameters    # obs. used (total)      2205      data-arc span      13614 days (37.27 yr)      first obs. used      1983-12-05      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45968      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:14:30   Additional Information  Earth MOID = 1.20333 au   Jupiter MOID = 2.46038 au   T_jup = 3.411  [ 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 13.78   n/a E2021B10   diameter diameter 4.304 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.287   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22901 Ivanbella           Discovered 1999 Oct. 12 by P. Kušnirák and P. Pravec at Ondřejov. Ivan Bella (b. 1964) is the first Slovak cosmonaut. He performed astrobiological experiments and physical body tests during his eight-day stay onboard the MIR Space Station in Feb. 1999. The name was suggested by the Slovak Astronomical Society. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010804/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1999 TY15 = 1983 XU1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 07:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin