ASTROSAT CZTI

Data Quality Report

Orbit 38202

Creation date: 2024-06-27T21:49:41.751374
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/AS1A07_145T01_9000005370_38202cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38202cztM0_level2_quad_clean.evt
Size (bytes)349,488,00097,473,600
Size333.3 MB 93.0 MB
Events in quadrant A2,976,740667,265
Events in quadrant B2,558,312692,813
Events in quadrant C3,227,156644,526
Events in quadrant D3,771,326584,288

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119663
B0107182
C0125752
D0145832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5181220.424628%
B5181270.521135%
C51811743.358425%
D51812665.134144%

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 7334 5182 14 14 0.19% 0.27%
B 7334 5181 18 18 0.25% 0.35%
C 7334 5182 173 173 2.36% 3.34%
D 7334 5181 285 285 3.89% 5.50%

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 364424 2922.98 618 607 124.5
A 9 143 134101 1072.52 618 607 124.5
A 12 189 55397 440.19 618 607 124.5
B 5 172 72225 612.55 623 606 116.9
B 0 230 16732 137.92 623 606 116.9
B 12 111 14490 118.75 623 606 116.9
C 2 16 540739 3903.12 601 607 138.4
C 15 214 213420 1537.84 601 607 138.4
C 14 254 88378 634.25 601 607 138.4
D 2 250 633675 4398.49 593 576 143.9
D 13 171 254358 1763.17 593 576 143.9
D 13 249 169096 1170.8 593 576 143.9

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