+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26003 Amundson (2001 FD104) Classification: Main-belt Asteroid          SPK-ID: 2026003 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05537719050035156 4.2652e-08   a 2.929138475733249 1.8307e-08 au q 2.76693101636066 1.3067e-07 au i 2.294432515138446 5.1649e-06 deg node 37.22682427986183 0.00012422 deg peri 80.71021283358955 0.0001399 deg M 33.42862235055809 6.0528e-05 deg tp 2459030.470506784070 (2020-Jun-29.97050678) 0.00030791 TDB period 1831.084060713998 5.01 1.7166e-05 4.7e-08 d yr n .1966048461257559 1.8432e-09 deg/d Q 3.091345935105839 1.9321e-08 au   Orbit Determination Parameters    # obs. used (total)      843      data-arc span      18199 days (49.83 yr)      first obs. used      1971-03-24      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53878      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 03:17:11   Additional Information  Earth MOID = 1.78418 au   Jupiter MOID = 1.94515 au   T_jup = 3.273  [ 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 14.76   n/a E2021B10   26003 Amundson           Discovered 2001 Mar. 18 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Lauren Amundson (b. 1984) is the librarian/archivist for Lowell Observatory. As such, she is the curator for the Observatory's historical collection which includes extensive material from Percival Lowell's personal research and travels. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2018-10-26 Last Updated: 2019-04-09 [ show close-approach data ] Alternate Designations  2001 FD104 = 1993 QM9 = 2000 AF155 = 4210 T-1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 20:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin