ASTROSAT CZTI

Data Quality Report

Orbit 07642

Creation date: 2024-06-27T15:22:11.545539
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/AS1G06_124T01_9000001054_07642cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07642cztM0_level2_quad_clean.evt
Size (bytes)106,597,4407,724,160
Size101.7 MB 7.4 MB
Events in quadrant A707,52835,446
Events in quadrant B723,71836,384
Events in quadrant C903,74734,420
Events in quadrant D805,97033,199

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028012
B028711
C036341
D031371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1239161.291364%
B1239181.452785%
C1239171.372074%
D1239342.744149%

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 1239 1239 0 0 0.00% 0.00%
B 1239 1239 0 0 0.00% 0.00%
C 1239 1239 0 0 0.00% 0.00%
D 1239 1239 8 8 0.65% 0.65%

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 0 128 3790 94.51 182 177 38.2
A 15 63 2998 73.79 182 177 38.2
A 0 226 1724 40.47 182 177 38.2
B 0 214 12262 335.26 180 177 36.0
B 0 219 7617 206.4 180 177 36.0
B 12 111 3331 87.5 180 177 36.0
C 1 16 209080 4986.36 176 177 41.9
C 9 68 7768 181.19 176 177 41.9
C 13 61 1301 26.83 176 177 41.9
D 2 152 68399 1492.59 178 173 45.7
D 2 14 21069 457.14 178 173 45.7
D 14 34 18293 396.41 178 173 45.7

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