ASTROSAT CZTI

Data Quality Report

Orbit 11159

Creation date: 2024-06-27T16:09:00.539832
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/AS1A04_058T01_9000001628_11159cztM0_level2.evt modeM0/AS1A04_058T01_9000001628_11159cztM0_level2_quad_clean.evt
Size (bytes)537,943,680101,701,440
Size513.0 MB 97.0 MB
Events in quadrant A4,372,489635,660
Events in quadrant B3,944,687680,363
Events in quadrant C2,884,993694,043
Events in quadrant D4,666,911634,664

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017211230
B016026200
C012915106
D018381195

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01304
C01302
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62234747.616905%
B62303014.831461%
C6238180.288554%
D62232023.246023%

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 8864 6276 245 245 2.76% 3.90%
B 8862 6278 138 138 1.56% 2.20%
C 8864 6285 0 0 0.00% 0.00%
D 8863 6280 90 90 1.02% 1.43%

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 5 772370 5355.93 713 698 144.1
A 14 238 651807 4519.14 713 698 144.1
A 8 15 182967 1265.07 713 698 144.1
B 4 239 817254 5909.68 746 728 138.2
B 15 204 53479 381.79 746 728 138.2
B 10 16 44510 316.88 746 728 138.2
C 9 204 7290 38.96 737 740 168.1
C 13 61 5376 27.57 737 740 168.1
C 12 4 3023 13.58 737 740 168.1
D 10 157 1283761 7744.2 703 685 165.7
D 10 199 141220 848.22 703 685 165.7
D 12 17 116766 700.62 703 685 165.7

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