ASTROSAT CZTI

Data Quality Report

Orbit 29523

Creation date: 2024-06-27T20:05:19.560795
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/AS1A10_094T08_9000004252_29523cztM0_level2.evt modeM0/AS1A10_094T08_9000004252_29523cztM0_level2_quad_clean.evt
Size (bytes)393,269,76060,053,760
Size375.1 MB 57.3 MB
Events in quadrant A1,693,444404,794
Events in quadrant B1,749,747405,781
Events in quadrant C1,799,176386,492
Events in quadrant D6,404,702347,519

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077860
B078590
C078680
D0217230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A387710.025793%
B387870.180505%
C3878220.567303%
D387859315.291387%

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 3877 3877 0 0 0.00% 0.00%
B 3878 3878 1 1 0.03% 0.03%
C 3878 3878 0 0 0.00% 0.00%
D 3878 3878 982 982 25.32% 25.32%

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 15 174 9482 101.27 435 427 89.4
A 13 254 8349 88.6 435 427 89.4
A 3 137 4254 42.8 435 427 89.4
B 10 245 12075 138.9 435 425 83.9
B 0 190 11151 127.88 435 425 83.9
B 12 111 9998 114.14 435 425 83.9
C 14 238 72637 731.22 414 417 98.8
C 3 233 65026 654.16 414 417 98.8
C 7 247 19597 194.2 414 417 98.8
D 8 195 4235874 43205.15 404 392 98.0
D 7 223 330413 3366.47 404 392 98.0
D 12 33 105272 1069.86 404 392 98.0

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