ASTROSAT CZTI

Data Quality Report

Orbit 20240526_A13_053T01_9000006274_level2

Creation date: 2024-05-31T11:03:11.172181
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/AS1A13_053T01_9000006274cztM0_level2.fits modeM0/AS1A13_053T01_9000006274cztM0_level2_quad_clean.evt
Size (bytes)2,521,716,4802,684,125,440
Size2.3 GB 2.5 GB
Events in quadrant A14,822,57016,061,065
Events in quadrant B14,377,65816,321,941
Events in quadrant C14,929,65815,492,996
Events in quadrant D12,521,34213,717,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09708750
B07214020
C06296470
D08112310

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03760
B03760
C03760
D03760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058420
B058420
C058420
D058420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28764099753.467877%
B287642103183.587098%
C28763455261.921192%
D287637223847.782031%

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 325293 287641 0 0 0.00% 0.00%
B 325293 287603 0 0 0.00% 0.00%
C 325293 287363 0 0 0.00% 0.00%
D 325293 287017 0 0 0.00% 0.00%

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 7 110 11858 8.35 3867 3611 987.4
A 0 29 11392 7.88 3867 3611 987.4
A 14 95 11026 7.51 3867 3611 987.4
B 2 9 13705 13.8 3803 3629 730.3
B 2 8 10903 9.96 3803 3629 730.3
B 3 17 10441 9.33 3803 3629 730.3
C 1 81 11344 7.52 3952 3675 1019.6
C 3 202 11331 7.51 3952 3675 1019.6
C 1 80 11046 7.23 3952 3675 1019.6
D 10 189 9156 5.97 3587 3253 989.1
D 3 14 9070 5.88 3587 3253 989.1
D 6 38 8991 5.8 3587 3253 989.1

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