ASTROSAT CZTI

Data Quality Report

Orbit 53054

Creation date: 2025-07-19T21:58:50.333186
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/AS1C09_011T07_9000006488_53054cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53054cztM0_level2_quad_clean.evt
Size (bytes)1,117,002,24087,102,720
Size1.0 GB 83.1 MB
Events in quadrant A8,282,160639,911
Events in quadrant B7,485,147662,603
Events in quadrant C12,971,453384,341
Events in quadrant D12,014,230413,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0299020
B0275650
C0437990
D0409925

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7713113814.754311%
B7713133117.256580%
C7713363847.167120%
D7712304139.432054%

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 7713 7713 1028 1028 13.33% 13.33%
B 7713 7713 1049 1049 13.60% 13.60%
C 7713 7713 3480 3480 45.12% 45.12%
D 7712 7712 2771 2771 35.93% 35.93%

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 9 191 2390173 12499.04 767 749 191.2
A 7 206 1524698 7971.75 767 749 191.2
A 15 190 409845 2139.97 767 749 191.2
B 1 255 2170216 13974.13 733 707 155.3
B 10 63 1669883 10751.41 733 707 155.3
B 5 172 206542 1325.81 733 707 155.3
C 1 241 7258171 44595.64 588 582 162.7
C 15 224 1320559 8110.85 588 582 162.7
C 15 147 665960 4088.54 588 582 162.7
D 12 17 3231553 17897.69 627 598 180.5
D 8 176 3098579 17161.09 627 598 180.5
D 2 172 1897464 10507.58 627 598 180.5

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