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Lowell Discovery Telescope
(formerly the Discovery Channel Telescope)
Observer Information Pages
(The information in the LDTOI space supersedes DCTIC: Observing at DCT)
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For the duration of the COVID-19 outbreak, all observing at the LDT will be done remotely. See Continuing, limited in-person observing will be supported at LDT. For those observing remotely, see LDT Remote Observing Notes. |
Current Semester Observer and Telescope Operator Calendar
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Image: TJ. Ellsworth-Bowers (Lowell) |
Fernandez (Lowell)
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The 4.3-m Lowell Discovery Telescope (LDT) is Lowell Observatory's flagship facility at a dark-sky site approximately 40 miles southeast of Flagstaff on the Coconino National Forest.Lowell Observatory operates the LDT in partnership with Boston University, University of Maryland, Northern Arizona University, University of Toledo, and Yale University. The telescope is classically scheduled by semester, with the current being 2021B.The . See the current call for observing proposals is linked in the sidebar at left for Lowell Observatory and Partner Institution members.
Facility Instruments:
LMI (Optical Imager)
DeVeny (Optical Spectrograph)
NIHTS (Near-infrared Spectrograph)
Visitor / PI Instruments:
EXPRES (Optical Spectrograph)
QWSSI (Optical Speckle Imager)
RIMAS (Near-infrared Spectrograph / Imager – Under Development, Coming 2022)
Instrumentation Main Page
List of LDT Scientific and Technical PublicationsThe facility was constructed as the Discovery Channel Telescope (DCT), and was renamed in 2019 in cooperation with Discovery Communications.
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Updates (and Old Updates)UPDATE: NIHTS is back in operation. (2021Nov15The 2025B LDT scheduled has been released. (2025Jun24) UPDATE: The 2022A LDT Call for Proposals has been for 2025B released. (2025Apr09) UPDATE: (2021Oct12LMI is back on-line as of Jan 30. (2025Jan31) UPDATE: The new VPN platform is now required for connection to the Lowell network. All remote observers MUST update their VPN settings: Watchguard SSLVPN Installation. (2021Sep06) UPDATE: The 2021B LDT schedule has been released. (2021Jun07) UPDATE: The dome mounted flat lamp bulbs (typically used for LMI dome flats) were replaced today. One of the previous three was burned out. (2021Jun01) DeVeny is back on-line as of Jan 14. (2025Jan14) UPDATE: Check your VPN settings before your next remote observations (2024May14)
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