+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1141 Bohmia (1930 AA) Classification: Main-belt Asteroid          SPK-ID: 2001141 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1656674920233542 3.1164e-08   a 2.270025148125552 6.4825e-09 au q 1.893955775005649 7.1305e-08 au i 4.27554059739877 3.0047e-06 deg node 105.5211002112935 4.7827e-05 deg peri 276.0167004171167 4.8795e-05 deg M 213.2349599059021 1.139e-05 deg tp 2459509.789293543258 (2021-Oct-22.28929354) 4.0647e-05 TDB period 1249.235823177116 3.42 5.3512e-06 1.465e-08 d yr n .2881761740424886 1.2344e-09 deg/d Q 2.646094521245456 7.5565e-09 au   Orbit Determination Parameters    # obs. used (total)      2364      data-arc span      33036 days (90.45 yr)      first obs. used      1930-01-04      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46205      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:26:52   Additional Information  Earth MOID = .902624 au   Jupiter MOID = 2.81563 au   T_jup = 3.591  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.3   n/a MPO425810   diameter diameter 5.642 km 0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 2.8480 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm] geometric albedo albedo 0.251   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1141 Bohmia (1930 AA)          Discovered 1930-Jan-04 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1930 AA = 1949 SU  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-08 13:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin