ASTROSAT CZTI

Data Quality Report

Orbit 25604

Creation date: 2024-06-27T19:19:26.612108
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_148T02_9000003728_25604cztM0_level2.evt modeM0/AS1A07_148T02_9000003728_25604cztM0_level2_quad_clean.evt
Size (bytes)461,880,00093,337,920
Size440.5 MB 89.0 MB
Events in quadrant A3,476,681614,645
Events in quadrant B3,348,800636,319
Events in quadrant C3,239,335581,271
Events in quadrant D3,503,166562,416

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143570
B0137050
C0132960
D0143450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6188250.404008%
B6188220.355527%
C6188731.179703%
D6188440.711054%

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 7493 6189 7 7 0.09% 0.11%
B 7493 6189 0 0 0.00% 0.00%
C 7493 6189 10 10 0.13% 0.16%
D 7493 6189 27 27 0.36% 0.44%

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 8 192 168112 1012.22 824 811 165.3
A 6 16 128431 772.14 824 811 165.3
A 13 254 10356 57.75 824 811 165.3
B 0 219 68364 436.12 826 809 154.9
B 0 245 23296 145.17 826 809 154.9
B 12 111 18203 112.29 826 809 154.9
C 14 238 126456 694.85 777 782 180.9
C 3 233 71568 391.37 777 782 180.9
C 0 207 14644 76.64 777 782 180.9
D 1 52 271367 1437.05 778 757 188.3
D 8 195 115293 608.23 778 757 188.3
D 2 153 40036 208.59 778 757 188.3

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