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Class: Solar. Nation: USA. TIMED was the first NASA Solar Terrestrial Probe, operated by Johns Hopkins Applied Physics Lab to study the thermosphere, mesosphere and lower ionosphere. TIMED was built in-house at APL and had a mass of 587 kg; the project was managed at NASA-Goddard. It measured solar and auroral energy input, atmospheric cooling rates, and atmospheric composition, temperature and wind profiles.
Mass: 587 kg (1,294 lb).
TIMED Chronology - 2001 December 7 - TIMED - Launch Site: Vandenberg. Launch Complex: SLC2W. Launch Vehicle: Delta. Mass: 485 kg (1,069 lb). Perigee: 623 km (387 mi). Apogee: 624 km (387 mi). Inclination: 74.10 deg. Period: 97.20 min.
TIMED was the first NASA Solar Terrestrial Probe, operated by Johns Hopkins Applied Physics Lab to study the thermosphere, mesosphere and lower ionosphere. TIMED was built in-house at APL and had a mass of 587 kg; the project was managed at NASA-Goddard. It measured solar and auroral energy input, atmospheric cooling rates, and atmospheric composition, temperature and wind profiles. Five minutes after deploying the JASON satellite, the DPAF adapter atop the Delta upper stage separated to reveal the TIMED satellite inside it. Burn 3 at 1614 GMT put Delta/TIMED in a descending 636 x 1330 km x 71.3 deg orbit; at perigee at 1706 GMT a fourth burn circularized the orbit at 627 x 640 km x 74.1 deg and TIMED was ejected six minutes later. A final depletion burn left the Delta stage in a low perigee orbit.
Bibliography:- McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: http://www.planet4589.org/jsr.html.
- National Space Science Center Planetary Page, As of 19 February 1999.. Web Address when accessed: http://nssdc.gsfc.nasa.gov/planetary/planetary_home.html.
- NASA/GSFC Orbital Information Group Website, Web Address when accessed: http://oig1.gsfc.nasa.gov/.
- Space-Launcher.com, Orbital Report News Agency. Web Address when accessed: http://www.orbireport.com/Log.html.
- NASA Report, TIMED Booklet, Web Address when accessed: http://www.timed.jhuapl.edu/press2/TIMED_Booklet.pdf.
- NASA Report, TIMED Factsheet, Web Address when accessed: http://www.timed.jhuapl.edu/press2/timed_factsheet.pdf.
- NASA Report, The TIMED Mission: Exploring One of the Atmosphere's Last Frontiers, Web Address when accessed: http://www.gsfc.nasa.gov/gsfc/service/gallery/fact_sheets/spacesci/TIMED.pdf.
- NASA Report, TIMED Quick Facts, Web Address when accessed: http://www.timed.jhuapl.edu/facts/faq.pdf.
- NASA Report, TIMED Integrated Electronics Module, Web Address when accessed: http://www.timed.jhuapl.edu/spacecraft/iem.pdf.
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