New results from the 29/01/2001 Kiruna flight

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Agenda

Status of available data and programs
E. Aubourg , C. Renault and FX. Desert

Pointing reconstruction
Discussions on the 3 solutions: A. Bourrachot, E. Aubourg, A. Benoit

Optical characterisation
S. Henrot-Versille, J.-C. Hamilton

High Frequency noise
P. Filliatre

Low Frequency noise
K. Madet, A. Amblard

Calibration
Responsivity
Jupiter
Dipole
Galaxy

Map-making
O. Dore
X. Dupac

Cl  estimates
O. Dore
S. Henrot-Versille
 

General discussions on the way forward

Participants to this meeting

Conclusions on the work to be done

archtoi improvements: E. Aubourg, C. Renault
  ---> Bugs and offsets

Pointing:
  ---> Stars and stellar candidates: 2 catalogs
  ---> Comparison of 3 methods

HF rise: E. Aubourg, M. Piat, AB

HF peaks and bumps: P. Filliatre
  ---> all flight, Constrained noise ? Study timelines before/after
decorrelation. 72 et al. specific analysis.
 

Flagging: P. Filliatre, FXD
  ---> Tail of glitches, slow glitches, other bad data ToBeDone

Time-dependent response and Bolometer model: K. Madet, FXD
  ---> Give responsivity correction factor

Photometric model: E. Wakui, B. Maffei, FXD, A. Amblard
  ---> Give emissivity of all components (0.1K, 1.6K, 10K, telescope, atm...)

Beam & Jupiter calibration, Glitches: SHV, JCH, MP
  ---> Check on photometry via simulation, effect of variable speed on
beam, include non-linearity and different current config, make code
available, Optical and electronic Cross-talk. Calibration table on
CVS. Compare positions with theoretical ones. Redo with new
pointings and clean data. Include non linearity,
compressor-decompressor. Understanding slow glitches. Time variability.

Map-making: X. Dupac, O. Dore, F. Bouchet & D. Vibert, D. Yvon, JCH, archeops++ group
  ---> Multibolometer maps. Data with holes. Date with prefiltering or
with Low Frequency decorrelation. Monte-Carlo simulations for noise
estimates (which are very important).

C_l: O. Dore, SHV et lal.
astroph-0104443, hierarchical decomposition

Cosmological parameter estimates
  ---> S. Bargot and M. Douspis, J. Bartlett

Polarisation: ISN+CdF
  ---> Investigate polarised systematic effects

Use of differential GPS: Ch. Magneville
  ---> Use it or not? Should be available for August flight
        or put accurate gyros: 1 or 3 ?
 
 

Ad-hoc committee CNES : 21 May 2001

August test flight for Inmarsat fast telemetry will also test Russian
side: 2hours at 25 km, 1 gyro, fast+slow Inmarsat, folding boom.

Possibility of going farther than Ural; Big helicopter to carry the
whole payload back.

Bolometer status: relations with Caltech, Planck...

Biarritz presentation + paper : beams, 545GHz
 

Next data reduction meeting
Tuesday 19 or 26 June 2001 in Grenoble

Last revision: 09/05/2001