+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22908 Bayefsky-Anand (1999 TK27) Classification: Main-belt Asteroid          SPK-ID: 2022908 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08037735159321184 8.7077e-09   a 2.311005644233273 6.7283e-09 au q 2.125253131032838 1.8934e-08 au i 6.485315079975138 7.392e-07 deg node 222.3645544628865 4.8239e-06 deg peri 9.202892856092907 1.3401e-05 deg M 171.3206433622479 1.1973e-05 deg tp 2458589.829231151600 (2019-Apr-16.32923115) 4.2451e-05 TDB period 1283.216502523759 3.51 5.604e-06 1.534e-08 d yr n .2805450204949608 1.2252e-09 deg/d Q 2.496758157433707 7.2691e-09 au   Orbit Determination Parameters    # obs. used (total)      2204      data-arc span      22026 days (60.30 yr)      first obs. used      1960-10-22      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46141      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:14:40   Additional Information  Earth MOID = 1.11365 au   Jupiter MOID = 2.48542 au   T_jup = 3.572  [ 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 14.06   n/a E2021B10   rotation period rot_per 16.375 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] 22908 Bayefsky-Anand           Discovered 1999 Oct. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Sarah Dana Bayefsky-Anand (b. 1989) is a finalist in the 2007 Intel Science Talent Search (STS), a science competition for high school seniors, for her zoology project. She attends the Abraham Joshua Heschel School, New York, New York. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070303/MPCPages.arc Last Updated: 2010-04-12 [ show close-approach data ] Alternate Designations  1999 TK27 = 1992 UG5 = 1998 MP21 = 9087 P-L  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 02:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin