ASTROSAT CZTI

Data Quality Report

Orbit 12225

Creation date: 2024-06-27T16:24:03.977071
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/AS1C03_014T02_9000001806_12225cztM0_level2.evt modeM0/AS1C03_014T02_9000001806_12225cztM0_level2_quad_clean.evt
Size (bytes)111,216,96028,598,400
Size106.1 MB 27.3 MB
Events in quadrant A800,384192,520
Events in quadrant B872,878195,489
Events in quadrant C720,493189,303
Events in quadrant D873,015180,532

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032792
B035241
C029891
D035451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1447201.382170%
B1447332.280581%
C1447130.898411%
D1447473.248100%

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 1448 1448 0 0 0.00% 0.00%
B 1448 1448 8 8 0.55% 0.55%
C 1448 1448 0 0 0.00% 0.00%
D 1448 1448 36 36 2.49% 2.49%

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 13 251 36192 948.94 178 174 38.0
A 1 162 27529 720.7 178 174 38.0
A 1 178 14654 381.49 178 174 38.0
B 4 239 137671 3832.57 181 177 35.9
B 3 64 15337 422.58 181 177 35.9
B 0 214 6935 188.38 181 177 35.9
C 5 112 4686 104.35 181 181 43.2
C 8 128 3216 70.3 181 181 43.2
C 8 112 1597 32.8 181 181 43.2
D 1 52 156081 3568.2 174 168 43.7
D 13 104 19721 447.49 174 168 43.7
D 13 122 9204 206.8 174 168 43.7

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