+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100756 (1998 FM5) Classification: Apollo [NEO]          SPK-ID: 2100756 [ 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 166 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5531950874241607 3.6996e-08   a 2.268264441565098 4.4487e-09 au q 1.013471695512378 8.4745e-08 au i 11.54644586091278 6.0756e-06 deg node 176.5939193307948 1.5276e-05 deg peri 311.9124323915731 1.5808e-05 deg M 190.7309619046529 7.1238e-06 deg tp 2459587.197150989824 (2022-Jan-07.69715099) 2.6327e-05 TDB period 1247.78268213094 3.42 3.6709e-06 1.005e-08 d yr n .2885117778563801 8.4878e-10 deg/d Q 3.523057187617817 6.9097e-09 au   Orbit Determination Parameters    # obs. used (total)      1018      data-arc span      11867 days (32.49 yr)      first obs. used      1988-04-20      last obs. used      2020-10-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51028      source      ORB      producer      Otto Matic      solution date      2020-Oct-17 08:38:16   Additional Information  Earth MOID = .0973126 au   Jupiter MOID = 1.68227 au   T_jup = 3.372  [ 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 16.25   n/a E2021B55   diameter diameter 1.809 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   rotation period rot_per 6.369 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (1998) http://www.asu.cas.cz/~ppravec/neo.htm] [Krugly, Yu.N.; Bel'skaya, I.N.; Shevchenko, V.G.; et al. (2002) Icarus 158, 294-304.] [Warner, B.D. (2015) Minor Planet Bull. 42, 115-127.] geometric albedo albedo 0.163   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 100756 (1998 FM5)          Discovered 1998-Mar-24 by NEAT at Haleakala Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 16:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin