ASTROSAT CZTI

Data Quality Report

Orbit 15522

Creation date: 2024-06-27T17:09:48.090007
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T02_085T01_9000002296_15522cztM0_level2.evt modeM0/AS1T02_085T01_9000002296_15522cztM0_level2_quad_clean.evt
Size (bytes)142,548,48019,912,320
Size135.9 MB 19.0 MB
Events in quadrant A987,478115,979
Events in quadrant B952,370116,378
Events in quadrant C971,154112,441
Events in quadrant D1,266,747111,222

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041450
B041370
C041110
D051060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200730.149477%
B200780.398605%
C200720.099651%
D2007472.341804%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2008 2008 0 0 0.00% 0.00%
B 2008 2008 2 2 0.10% 0.10%
C 2008 2008 0 0 0.00% 0.00%
D 2008 2008 49 49 2.44% 2.44%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 253 96081 1997.92 225 220 48.0
A 14 238 16399 337.2 225 220 48.0
A 14 237 4584 90.95 225 220 48.0
B 0 197 13259 290.14 226 220 44.9
B 0 190 13108 286.78 226 220 44.9
B 4 142 12287 268.51 226 220 44.9
C 3 233 110079 2150.57 212 213 51.1
C 14 238 32571 633.39 212 213 51.1
C 13 61 1557 26.31 212 213 51.1
D 5 222 322176 5938.07 214 207 54.2
D 7 38 81238 1494.45 214 207 54.2
D 12 221 39941 732.81 214 207 54.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter