+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17814 (1998 FH113) Classification: Main-belt Asteroid          SPK-ID: 2017814 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 45 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1187082819468738 2.072e-08   a 3.008835630778104 1.4421e-08 au q 2.651661922387897 6.4833e-08 au i 8.739421812733944 4.2792e-07 deg node 252.0781232013466 5.8682e-06 deg peri 88.25407924442126 9.4008e-06 deg M 351.7548779690961 7.0541e-06 deg tp 2459244.160701464864 (2021-Jan-29.66070146) 3.7432e-05 TDB period 1906.321394448557 5.22 1.3705e-05 3.752e-08 d yr n .188845386223102 1.3577e-09 deg/d Q 3.366009339168312 1.6133e-08 au   Orbit Determination Parameters    # obs. used (total)      2632      data-arc span      25958 days (71.07 yr)      first obs. used      1949-11-30      last obs. used      2020-12-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .41016      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:14:02   Additional Information  Earth MOID = 1.65988 au   Jupiter MOID = 2.04651 au   T_jup = 3.222  [ 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 12.16   n/a E2021B10   diameter diameter 13.309 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 9.22 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Tan, H.; Yeh, T.; Li, B.; Gao, X. (2018) Minor Planet Bull. 45, 57-59.] geometric albedo albedo 0.240   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   17814 (1998 FH113)          Discovered 1998-Mar-31 by LINEAR at Socorro Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 00:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin