ASTROSAT CZTI

Data Quality Report

Orbit 47604

Creation date: 2024-07-17T16:56:01.528539
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_071T01_9000006340_47604cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47604cztM0_level2_quad_clean.evt
Size (bytes)524,522,880105,966,720
Size500.2 MB 101.1 MB
Events in quadrant A7,893,313680,914
Events in quadrant B4,235,580722,379
Events in quadrant C3,125,221709,846
Events in quadrant D3,674,065656,014

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282062
B0165922
C0132972
D0152182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A629570511.199365%
B62952954.686259%
C6295330.524226%
D62961522.414231%

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 7480 6298 461 461 6.16% 7.32%
B 7480 6297 208 208 2.78% 3.30%
C 7480 6297 2 2 0.03% 0.03%
D 7481 6298 113 113 1.51% 1.79%

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 3451133 23366.68 711 697 147.7
A 13 248 970471 6567.4 711 697 147.7
A 9 191 512408 3465.36 711 697 147.7
B 0 200 488748 3497.79 710 687 139.5
B 5 29 293726 2100.13 710 687 139.5
B 5 255 280722 2006.93 710 687 139.5
C 3 233 336205 2002.84 713 716 167.5
C 15 208 8183 44.58 713 716 167.5
C 14 254 5956 31.28 713 716 167.5
D 2 249 342935 1899.59 722 702 180.2
D 12 2 250648 1387.34 722 702 180.2
D 13 171 143646 793.42 722 702 180.2

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