ASTROSAT CZTI

Data Quality Report

Orbit 18590

Creation date: 2024-06-27T17:51:59.038706
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/AS1A05_072T02_9000002762_18590cztM0_level2.evt modeM0/AS1A05_072T02_9000002762_18590cztM0_level2_quad_clean.evt
Size (bytes)429,857,28064,388,160
Size409.9 MB 61.4 MB
Events in quadrant A2,535,961400,378
Events in quadrant B2,600,884411,826
Events in quadrant C4,387,502362,883
Events in quadrant D3,120,072389,293

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111541
B0112461
C0165271
D0128351

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A549980.145481%
B549970.127296%
C549960711.038371%
D5499430.781960%

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 5499 5499 2 2 0.04% 0.04%
B 5499 5499 3 3 0.05% 0.05%
C 5499 5499 448 448 8.15% 8.15%
D 5499 5499 44 44 0.80% 0.80%

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 14 111 20066 145.86 651 638 133.2
A 13 254 8664 60.26 651 638 133.2
A 0 226 5693 37.95 651 638 133.2
B 3 64 17336 131.67 652 635 126.8
B 12 111 15240 115.15 652 635 126.8
B 11 111 13437 100.93 652 635 126.8
C 4 254 1861222 13143.64 600 603 141.6
C 14 238 91822 644.38 600 603 141.6
C 9 54 88732 622.55 600 603 141.6
D 1 52 615988 3925.21 636 615 156.8
D 5 222 50390 317.49 636 615 156.8
D 15 145 25446 158.39 636 615 156.8

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