ASTROSAT CZTI

Data Quality Report

Orbit 07179

Creation date: 2024-06-27T15:16:35.004664
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/AS1G06_102T01_9000000978_07179cztM0_level2.evt modeM0/AS1G06_102T01_9000000978_07179cztM0_level2_quad_clean.evt
Size (bytes)368,919,36069,632,640
Size351.8 MB 66.4 MB
Events in quadrant A2,744,112436,876
Events in quadrant B2,632,312451,225
Events in quadrant C2,465,868437,005
Events in quadrant D2,971,135413,631

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114812
B0111432
C0109402
D0123252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5277601.137010%
B5277701.326511%
C5277290.549555%
D5277921.743415%

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 6562 5278 3 3 0.05% 0.06%
B 6562 5278 0 0 0.00% 0.00%
C 6562 5279 0 0 0.00% 0.00%
D 6562 5278 43 43 0.66% 0.81%

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 15 186542 1414.85 653 640 131.4
A 14 238 32342 241.27 653 640 131.4
A 15 174 7526 52.41 653 640 131.4
B 0 214 29630 233.25 657 643 124.3
B 15 204 28115 221.05 657 643 124.3
B 0 219 13061 99.92 657 643 124.3
C 10 22 10427 67.55 629 632 145.0
C 13 61 4914 29.53 629 632 145.0
C 9 68 2577 13.41 629 632 145.0
D 2 216 279392 1818.64 628 608 153.3
D 8 195 147664 959.32 628 608 153.3
D 2 14 128821 836.39 628 608 153.3

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