The TRC70 Telescope
The Astronomical Institute of the University La Sapienza and the Institute of Space Astrophysics
(IAS-CNR), installed in 1995 a 70 cm f/8.3 telescope at Monte Porzio,
in a dome rented from the Rome Astronomical Observatory
(Long. 12o 42' 09" East, Lat. +41o 48' 00") in 1995.
The optical tube and mirrors were realized by MARCON, while the mounting
and drive system were realized by dr. Giuliano Natali, IAS-CNR.
Routine observations started by the end of Spring 1996.
The observing time was shared in equal parts between the two Institutions.
Observations by the University group were performed with a CCD camera built by
the italian firm DTA using a back-illuminated SITe SIA502A chip 512x512
(24 micron square pixels) thermoelectrically cooled.
The main topic of research was monitoring
of BL Lacs in the usual Johnson-Cousins filters, with
special care for simultaneous observations with space-born instruments.
Here are the (Johnson-Cousins) filter recipes:
- U: UG1/1MM + BG39/2mm + UBK7/1mm
- B: BG12/2mm + BG39/1mm + GG385/1mm
- V: GG495/2mm + BG39/2mm
- R: OG570/2mm + KG3/2mm
- I: RG9/3mm + BK7/1mm
Observations by the IAS-CNR group were made using a CCD camera built by the
group itself, based on the same kind of SITe chip, but nitrogen cooled.
The Station was closed in August 2001.
A new building for the telescope was realized at Monte Autore , but the Station did not became operative due to funds cutting after the confluence of the IAS-CNR into the National Institute of Astrophysics (INAF).