ASTROSAT CZTI

Data Quality Report

Orbit 05364

Creation date: 2024-06-27T14:54:22.131257
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/AS1G05_106T01_9000000678_05364cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05364cztM0_level2_quad_clean.evt
Size (bytes)1,601,190,720264,908,160
Size1.5 GB 252.6 MB
Events in quadrant A11,655,7501,614,670
Events in quadrant B12,440,8641,612,555
Events in quadrant C10,606,7321,620,588
Events in quadrant D12,189,2361,547,369

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04820
B04820
C04820
D04820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05145914
B05251514
C04846017
D0522326

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A236636702.831425%
B236624982.104640%
C236612691.136892%
D236664551.922589%

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 25987 23667 251 251 0.97% 1.06%
B 25987 23667 137 137 0.53% 0.58%
C 25987 23667 17 17 0.07% 0.07%
D 25987 23668 162 162 0.62% 0.68%

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 0 50 820893 1483.72 2701 2641 551.5
A 15 174 376156 677.29 2701 2641 551.5
A 14 111 67240 117.14 2701 2641 551.5
B 10 16 434463 820.64 2745 2680 526.2
B 4 80 404425 763.55 2745 2680 526.2
B 4 81 293598 552.92 2745 2680 526.2
C 1 16 219889 357.66 2637 2648 607.4
C 9 247 55593 87.17 2637 2648 607.4
C 13 61 21744 31.44 2637 2648 607.4
D 8 195 535783 826.21 2632 2550 645.4
D 2 234 351549 540.75 2632 2550 645.4
D 2 63 267946 411.22 2632 2550 645.4

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