ASTROSAT CZTI

Data Quality Report

Orbit 33323

Creation date: 2024-06-27T20:47:33.978922
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/AS1T04_071T01_9000004782_33323cztM0_level2.evt modeM0/AS1T04_071T01_9000004782_33323cztM0_level2_quad_clean.evt
Size (bytes)494,386,56090,757,440
Size471.5 MB 86.6 MB
Events in quadrant A2,553,712636,727
Events in quadrant B3,964,687610,275
Events in quadrant C4,281,207583,802
Events in quadrant D3,844,972577,585

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102143
B0148912
C0159412
D0146442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A484050.103306%
B48403938.119835%
C48403487.190083%
D4840601.239669%

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 6963 4841 0 0 0.00% 0.00%
B 6963 4841 266 266 3.82% 5.49%
C 6963 4841 295 295 4.24% 6.09%
D 6963 4841 45 45 0.65% 0.93%

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 15 169 99863 794.57 633 625 124.9
A 13 6 7761 57.14 633 625 124.9
A 13 254 7277 53.26 633 625 124.9
B 5 172 881066 7736.19 605 592 113.8
B 0 219 595843 5230.11 605 592 113.8
B 15 85 39585 342.61 605 592 113.8
C 1 23 797114 6004.37 579 585 132.7
C 10 49 660548 4974.92 579 585 132.7
C 15 214 220484 1657.64 579 585 132.7
D 8 195 1084349 7356.96 602 587 147.3
D 2 250 123943 837.38 602 587 147.3
D 13 249 97942 660.88 602 587 147.3

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