ASTROSAT CZTI

Data Quality Report

Orbit 47564

Creation date: 2024-07-15T00:41:59.880335
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_002T01_9000006334_47564cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47564cztM0_level2_quad_clean.evt
Size (bytes)476,015,040107,363,520
Size454.0 MB 102.4 MB
Events in quadrant A7,109,323706,981
Events in quadrant B3,166,540741,660
Events in quadrant C2,769,248710,197
Events in quadrant D4,078,965645,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255771
B0137622
C0130001
D0165571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63993615.641506%
B6399610.953274%
C6399130.203157%
D63991642.562900%

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 7459 6400 69 69 0.93% 1.08%
B 7459 6400 14 14 0.19% 0.22%
C 7459 6400 1 1 0.01% 0.02%
D 7459 6400 125 125 1.68% 1.95%

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 3988752 27256.26 711 698 146.3
A 9 191 325514 2219.95 711 698 146.3
A 15 235 15615 101.95 711 698 146.3
B 0 200 123025 878.53 720 698 139.2
B 5 255 62957 447.13 720 698 139.2
B 0 198 28131 197.02 720 698 139.2
C 3 233 15399 90.22 702 706 162.8
C 0 207 10983 63.11 702 706 162.8
C 13 61 4801 25.15 702 706 162.8
D 2 165 425479 2448.31 697 673 173.5
D 2 249 257877 1482.36 697 673 173.5
D 2 120 201327 1156.44 697 673 173.5

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