ASTROSAT CZTI

Data Quality Report

Orbit 13769

Creation date: 2024-06-27T16:45:52.641733
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_199T01_9000002040_13769cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13769cztM0_level2_quad_clean.evt
Size (bytes)134,942,40015,975,360
Size128.7 MB 15.2 MB
Events in quadrant A937,91888,502
Events in quadrant B944,69291,645
Events in quadrant C939,10089,714
Events in quadrant D1,142,43784,185

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038832
B038851
C038481
D045031

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A175719411.041548%
B175719711.212294%
C17571649.334092%
D175719911.326124%

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 1803 1759 0 0 0.00% 0.00%
B 1803 1759 0 0 0.00% 0.00%
C 1803 1759 0 0 0.00% 0.00%
D 1803 1759 10 10 0.55% 0.57%

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 9 143 12170 230.11 238 232 51.9
A 1 162 2900 51.43 238 232 51.9
A 0 226 2277 39.42 238 232 51.9
B 8 250 6354 124.23 238 230 49.3
B 12 111 5742 111.81 238 230 49.3
B 3 209 5643 109.81 238 230 49.3
C 3 233 22968 404.56 232 231 56.2
C 8 128 3513 58.4 232 231 56.2
C 12 4 2024 31.9 232 231 56.2
D 1 52 157737 2685.95 233 225 58.6
D 13 249 77473 1317.26 233 225 58.6
D 8 195 16549 278.36 233 225 58.6

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