Weekly Letters (Collaboration only)

Trapani Flight 1999

Kiruna Test Flights in March/April 2000

Kiruna Flight December 2000/ January 2001

Kiruna Inmarsat test flight August 2001

Kiruna Flight December 2001 / January 2002 / February 2002

• 1997: First discussions on the Spinner project at Caltech (A. Benoit & A. Lange)
• 1998: ``Phase A ''  study leading to Document Archeops A & B
• Study of Atmospheric noise with ATM model
•  24-dec-1998: 4 Kelvin on the cryostat
• End of 1998: predictions for Trapani (standard_CDM, lambda_CDM)

March 1999 :  98 mK on the cryostat (champagne !)
• April 1999 : 82 mK, first test of a blind bolometer and of the 100 mK stage temperature regulation (A report was written here in postscript or rtf)
• Final optical & mechanical design of bolometer+optics+filters (a report is here in postscript or rtf)
• New photo gallery to be  used for presentations: so far mostly the cryostat, its electronics and the first bolometer tests (see Archeops gallery)
6 & 7 May CRTBT Meeting  Agenda  &  Organisation, Participants, Hotel (Same in English)  (MINUTES of the meeting)

• May 10th : Alignment of telescope and inner gondola at CRTBT and ISN
• May 20th : Archeops First Light at CRTBT with 3 of the 6 bolometers provided by QMW and Caltech
• June 2nd : A small  photometry report based on Transmission curves for channel 1 from QMW (back to back horn  and  cold filters) as shown on the figure
• June 2nd :  Archeops simulations, quick look and online data processing from Aubourg, Couchot, Delabrouille et al.
• June 3rd : First light of the instrument (2 mirrors + cryostat mounted on the inner frame of the gondola) in front of the calibration chopped source
• June 4rth : Tentative list of travel plans for the Trapani June-July 1999 test flight campaign
• June 9th : At night, the stellar sensor was tested in front of the ISN laser pulsed source placed on the Neron's hill 1km away. A report on that positive test will soon be posted.
• June 10th : Failure of detection of the submillimetre source on the Neron. The jump of temperature between the mountain and the sky is well detected with a beam smaller than 20 arcmin.

June 14th : Packing in Grenoble
 
 

• June-July 1999 : Trapani Test Flight

Base di Lancio (Stratospheric Balloons Launch Site)
 

 
• Trapani flight data reduction: Minutes of the 18 July 1999 software meeting
• Report on the Flight optical configuration (version 2) in RTF  or Gzipped Postscript
• Logbook of the Trapani Flight (version 1) in ascii  and Detector and Thermometer flight configuration in ascii
• 16-17 September 1999 meeting in Grenoble.

Following the Archeops flight in Trapani, we organise a two days meeting in Grenoble  on September 16th and 17th (Thursday and Friday). We will discuss:
- conclusions from the Trapani flight - organisation of the data reduction - preparation of the Kiruna flight.
The Agenda.
Conclusions of the meeting
 
• 22 October 1999 Archeops Data Analysis meeting in Paris, College de France
• New Archeops Web page at College de France
• A general public article about the first flight in the CNRS Info (in French)
• 26 November 1999 Archeops Data Analysis meeting in Toulouse (Observatoire Midi-Pyrenees)
• December 1999: Tentative test flight at Kiruna to test telecommunications
• 20 December 1999 Archeops Data Analysis meeting in Paris (IAP)
• 11 February 2000 Archeops Data Analysis meeting in Grenoble (ISN)

 
• 3 March 2000:
First  CNES Kiruna flight for Archeops (3 March 2000)





• 13 March 2000 Archeops Data Analysis meeting in Orsay (LAL)
• April 2000:
Second  CNES Kiruna flight for Archeops (4 April 2000)




• 09 May    2000 Archeops Data Analysis meeting in Grenoble (ISN)
• 19 June   2000 Archeops Data Analysis meeting in Paris (PCC-CdF)
• June 2000: Ground based calibration: optical + polarisation with new gondola but Trapani focal plane
 Primary & Secondary mirrors are fixed on the new gondola with the photometer. The pointing platform (ISN) is in blue. The stellar sensor is on the left. Photo taken at LEMD near CRTBT (Tuesday 27th June 2000).

• 25 September 2000 Archeops Data Analysis meeting in Grenoble (ISN)
• Photos of the new focal plane mechanics can be found here
  

• 13 February 2001 CNRS Press release

• 26/27 February 2001 Archeops meeting in Grenoble (CRTBT)
• April 2-6 2001 , Archeops Analysis Workshop  in Chartreuse
• 9 May 2001 Archeops meeting at College de France (PCC), Paris
• 19 June 2001 Archeops meeting at ISN Grenoble

• 7 September 2001 Archeops meeting at College de France (PCC) Paris
• 4 October 2001 Archeops meeting at CRTBT (Grenoble)
• Monday 19 November 2001 The lorry takes the gondola in Grenoble and starts its journey to Kiruna
• Thursday 22 November 2001 Archeops meeting at CRTBT(Grenoble)

• Tuesday 5th March 2002 Archeops meeting at CRTBT(Grenoble)
• Wednesday 3rd April 2002 Archeops meeting at College de France (Paris)
• Friday 17th May 2002 Archeops meeting (precedeed by a 4-day workshop) at ISN and CRTBT(Grenoble)
• Friday 14th June 2002 Archeops meeting (precedeed by a 4-day workshop) at  LAL (Orsay)

• Friday 27th September 2002 Archeops meeting in Grenoble preceeded by 2 PhDs thesis (P. Filliatre & K. Madet) the 26th September
• October, 9th 2002 Publication of the first Archeops results
• Friday 29th November 2002 Archeops meeting at College de France (Paris)
• Tuesday 28th January 2003 Archeops meeting at Grenoble
• Monday 10th March 2003 Archeops meeting at  IAP (Paris)
• The ISN Grenoble becomes the LPSC Grenoble (Laboratoire de Physique Subatomique et de Cosmologie)
• Monday April, 28th 2003 Archeops meeting by phone
• Thursday July, 3rd 2003 Archeops meeting  at IAP (Paris)
• Monday May, 17th 2004 Archeops meeting  at IAP (Paris)

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Suggestions are welcome to C. Renault