+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26274 (1998 RH75) Classification: Main-belt Asteroid          SPK-ID: 2026274 [ 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 .1317744181143477 3.7069e-08   a 2.4693844840785 9.527e-09 au q 2.143982780588457 8.9824e-08 au i 12.39185749355296 3.8663e-06 deg node 181.5363257081201 1.2466e-05 deg peri 27.68890850451036 1.7565e-05 deg M 4.455560143621159 1.1294e-05 deg tp 2458982.957911043218 (2020-May-13.45791104) 4.449e-05 TDB period 1417.364331504487 3.88 8.2024e-06 2.246e-08 d yr n .2539925635195514 1.4699e-09 deg/d Q 2.794786187568543 1.0782e-08 au   Orbit Determination Parameters    # obs. used (total)      2094      data-arc span      9556 days (26.16 yr)      first obs. used      1994-07-09      last obs. used      2020-09-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46903      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 01:29:52   Additional Information  Earth MOID = 1.14815 au   Jupiter MOID = 2.17338 au   T_jup = 3.441  [ 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 13.9   n/a MPO333060   diameter diameter 4.493 km 0.652 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 3.1296 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Brown Jr., J.E.; Linder, T.; Puckett, A.; Holmes, R. (2017) Minor Planet Bull. 44, 111.] geometric albedo albedo 0.264   0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   26274 (1998 RH75)          Discovered 1998-Sep-14 by LINEAR at Socorro Reference: 20010705/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 RH75 = 2000 AM204  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-24 23:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin