ASTROSAT CZTI

Data Quality Report

Orbit 40249

Creation date: 2024-06-27T22:14:08.505937
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/AS1T05_086T01_9000005534_40249cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40249cztM0_level2_quad_clean.evt
Size (bytes)133,416,00039,542,400
Size127.2 MB 37.7 MB
Events in quadrant A1,299,793258,673
Events in quadrant B1,054,952271,443
Events in quadrant C1,111,373260,463
Events in quadrant D1,282,816234,139

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053451
B048551
C048601
D056061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2403110.457761%
B240330.124844%
C240340.166459%
D2403562.330420%

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 2403 2403 3 3 0.12% 0.12%
B 2403 2403 0 0 0.00% 0.00%
C 2403 2403 2 2 0.08% 0.08%
D 2403 2403 50 50 2.08% 2.08%

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 10 83 212334 3868.83 259 254 54.8
A 13 248 69026 1254.56 259 254 54.8
A 6 10 6477 113.52 259 254 54.8
B 5 255 21610 406.42 260 253 52.5
B 12 111 6408 117.13 260 253 52.5
B 11 111 6206 113.28 260 253 52.5
C 15 214 104903 1722.77 252 253 60.7
C 0 10 12110 195.19 252 253 60.7
C 14 254 6640 105.14 252 253 60.7
D 12 227 267924 4247.93 248 240 63.0
D 9 19 15309 239.13 248 240 63.0
D 2 233 11387 176.89 248 240 63.0

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