ASTROSAT CZTI

Data Quality Report

Orbit 32978

Creation date: 2024-06-27T20:44:09.867308
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_003T01_9000004754_32978cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32978cztM0_level2_quad_clean.evt
Size (bytes)413,864,64059,160,960
Size394.7 MB 56.4 MB
Events in quadrant A2,498,295364,756
Events in quadrant B3,519,085355,810
Events in quadrant C2,889,649349,848
Events in quadrant D3,257,263340,286

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109683
B0139192
C0120292
D0131772

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A543630.055188%
B54363165.813098%
C54361412.593819%
D5436601.103753%

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 7080 5437 0 0 0.00% 0.00%
B 7080 5437 206 206 2.91% 3.79%
C 7080 5437 105 105 1.48% 1.93%
D 7080 5437 50 50 0.71% 0.92%

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 9 143 19226 144.63 638 627 128.6
A 13 254 8636 62.28 638 627 128.6
A 12 227 7803 55.8 638 627 128.6
B 5 172 942306 7767.18 625 610 121.2
B 5 31 52291 426.27 625 610 121.2
B 0 197 17982 143.29 625 610 121.2
C 0 10 401454 2799.29 615 619 143.2
C 14 67 51820 357.57 615 619 143.2
C 1 241 17858 120.39 615 619 143.2
D 8 195 267145 1628.96 615 600 163.6
D 14 52 186893 1138.51 615 600 163.6
D 2 250 119010 723.65 615 600 163.6

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