ASTROSAT CZTI

Data Quality Report

Orbit 20240624_C09_011T02_9000006310_level2

Creation date: 2024-06-25T10:49:28.335790
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_011T02_9000006310cztM0_level2.fits modeM0/AS1C09_011T02_9000006310cztM0_level2_quad_clean.evt
Size (bytes)55,834,56056,070,720
Size53.2 MB 53.5 MB
Events in quadrant A312,162316,910
Events in quadrant B322,672343,424
Events in quadrant C336,614331,786
Events in quadrant D268,984255,086

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01340
C01340
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259380
B0146050
C0138420
D0200960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62833165.029445%
B65311241.898637%
C6556560.854179%
D638467310.541980%

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 10392 6626 0 0 0.00% 0.00%
B 10392 6845 0 0 0.00% 0.00%
C 10391 6853 0 0 0.00% 0.00%
D 10392 6688 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 7 110 257 7.94 81 76 22.8
A 0 29 249 7.59 81 76 22.8
A 14 79 233 6.88 81 76 22.8
B 2 9 317 12.26 85 81 19.3
B 3 17 234 7.95 85 81 19.3
B 5 255 233 7.9 85 81 19.3
C 1 81 263 7.28 88 82 24.9
C 3 202 252 6.84 88 82 24.9
C 1 80 246 6.59 88 82 24.9
D 1 3 214 6.23 77 69 23.3
D 6 38 213 6.18 77 69 23.3
D 15 46 202 5.71 77 69 23.3

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