ASTROSAT CZTI

Data Quality Report

Orbit 14288

Creation date: 2024-06-27T16:52:58.238796
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/AS1G08_014T01_9000002104_14288cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14288cztM0_level2_quad_clean.evt
Size (bytes)600,742,08078,955,200
Size572.9 MB 75.3 MB
Events in quadrant A3,352,943497,208
Events in quadrant B3,575,497498,170
Events in quadrant C3,434,759473,900
Events in quadrant D7,379,191457,011

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138612
B0145901
C0139771
D0264691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66651061.590398%
B66651432.145536%
C6665610.915229%
D6665106115.918980%

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 7626 6667 2 2 0.03% 0.03%
B 7626 6667 21 21 0.28% 0.31%
C 7626 6667 0 0 0.00% 0.00%
D 7626 6667 820 820 10.75% 12.30%

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 12 189 78601 458.97 842 826 169.5
A 8 15 23670 134.81 842 826 169.5
A 15 69 11697 64.15 842 826 169.5
B 0 229 203324 1275.33 830 809 158.8
B 0 219 40247 248.36 830 809 158.8
B 4 48 27454 167.8 830 809 158.8
C 3 233 300723 1620.62 803 805 185.1
C 13 61 5690 26.4 803 805 185.1
C 14 234 1833 5.55 803 805 185.1
D 13 122 4144561 22588.46 774 758 183.4
D 10 199 135030 731.94 774 758 183.4
D 12 110 90154 487.31 774 758 183.4

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