ASTROSAT CZTI

Data Quality Report

Orbit 45723

Creation date: 2024-06-27T23:15:25.935161
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/AS1T05_183T01_9000006124_45723cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45723cztM0_level2_quad_clean.evt
Size (bytes)200,594,88037,463,040
Size191.3 MB 35.7 MB
Events in quadrant A2,260,831238,594
Events in quadrant B1,614,621254,065
Events in quadrant C1,438,751251,950
Events in quadrant D1,933,972226,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081741
B062931
C058391
D073351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A225523510.421286%
B22551838.115299%
C22551576.962306%
D22551767.804878%

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 3065 2256 2 2 0.07% 0.09%
B 3065 2255 50 50 1.63% 2.22%
C 3065 2256 59 59 1.92% 2.62%
D 3065 2255 88 88 2.87% 3.90%

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 10 83 1107871 17779.23 291 283 62.3
A 2 79 10242 159.86 291 283 62.3
A 13 248 7372 113.79 291 283 62.3
B 3 112 212538 3476.19 290 280 61.1
B 15 201 81848 1335.85 290 280 61.1
B 0 186 67143 1095.03 290 280 61.1
C 14 254 300283 4319.01 284 286 69.5
C 1 241 14156 199.68 284 286 69.5
C 0 207 5384 73.4 284 286 69.5
D 1 52 544263 7268.81 287 277 74.8
D 13 249 165818 2211.98 287 277 74.8
D 2 249 47371 629.28 287 277 74.8

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