ASTROSAT CZTI

Data Quality Report

Orbit 09268

Creation date: 2024-06-27T15:43:38.579647
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/AS1A03_091T05_9000001300_09268cztM0_level2.evt modeM0/AS1A03_091T05_9000001300_09268cztM0_level2_quad_clean.evt
Size (bytes)311,797,44051,312,960
Size297.4 MB 48.9 MB
Events in quadrant A2,662,247312,257
Events in quadrant B2,109,239323,216
Events in quadrant C1,995,902314,779
Events in quadrant D2,379,336298,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0908
C0902
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010846259
B09371202
C09185161
D010295245

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43242495.758557%
B43411934.445980%
C43571693.878816%
D43222195.067099%

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 4696 4429 25 25 0.53% 0.56%
B 4696 4429 0 0 0.00% 0.00%
C 4696 4432 0 0 0.00% 0.00%
D 4696 4424 43 43 0.92% 0.97%

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 8 5 435422 4092.9 507 495 106.3
A 15 174 129093 1210.18 507 495 106.3
A 5 16 56254 524.72 507 495 106.3
B 0 219 41014 403.14 514 501 100.5
B 0 214 27614 269.8 514 501 100.5
B 0 230 15994 154.17 514 501 100.5
C 9 68 19236 158.25 502 503 118.4
C 8 128 8338 66.19 502 503 118.4
C 8 112 4678 35.27 502 503 118.4
D 12 233 192401 1462.69 493 480 131.2
D 1 52 111148 843.43 493 480 131.2
D 7 71 103444 784.72 493 480 131.2

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