ASTROSAT CZTI

Data Quality Report

Orbit 40229

Creation date: 2024-06-27T22:13:52.354684
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/AS1C07_001T01_9000005532_40229cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40229cztM0_level2_quad_clean.evt
Size (bytes)219,061,44067,775,040
Size208.9 MB 64.6 MB
Events in quadrant A1,928,677451,433
Events in quadrant B1,920,241465,662
Events in quadrant C1,851,021461,873
Events in quadrant D2,118,821411,430

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081671
B082741
C077891
D090381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3707130.350688%
B3707340.917184%
C370780.215808%
D37071163.129215%

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 3707 3707 6 6 0.16% 0.16%
B 3707 3707 27 27 0.73% 0.73%
C 3707 3707 4 4 0.11% 0.11%
D 3707 3707 86 86 2.32% 2.32%

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 291568 3485.64 406 398 83.5
A 13 248 47471 563.52 406 398 83.5
A 2 79 10391 119.63 406 398 83.5
B 0 229 144809 1841.31 412 401 78.4
B 5 255 110880 1408.69 412 401 78.4
B 0 245 19799 247.34 412 401 78.4
C 15 214 157921 1653.91 411 414 95.2
C 14 254 40952 425.67 411 414 95.2
C 0 10 19252 197.81 411 414 95.2
D 12 227 263417 2720.02 399 388 96.7
D 2 249 115790 1193.39 399 388 96.7
D 13 249 73662 757.73 399 388 96.7

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