ASTROSAT CZTI

Data Quality Report

Orbit 31433

Creation date: 2024-06-27T20:28:26.216364
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_094T34_9000004574_31433cztM0_level2.evt modeM0/AS1A10_094T34_9000004574_31433cztM0_level2_quad_clean.evt
Size (bytes)238,775,04054,434,880
Size227.7 MB 51.9 MB
Events in quadrant A1,277,193368,539
Events in quadrant B2,310,646360,604
Events in quadrant C1,585,206355,124
Events in quadrant D1,853,509350,948

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059830
B092010
C067480
D074670

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A298810.033467%
B2989180.602208%
C2989832.776848%
D2989571.906992%

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 2988 2988 0 0 0.00% 0.00%
B 2989 2989 4 4 0.13% 0.13%
C 2989 2989 9 9 0.30% 0.30%
D 2989 2989 55 55 1.84% 1.84%

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 13 254 6640 92.81 330 322 68.1
A 3 137 3320 44.04 330 322 68.1
A 0 226 2821 36.71 330 322 68.1
B 6 159 852397 13267.2 325 317 64.2
B 12 1 98097 1522.47 325 317 64.2
B 4 80 25091 385.74 325 317 64.2
C 3 233 247897 3363.58 309 312 73.6
C 14 238 75231 1017.82 309 312 73.6
C 14 254 34818 468.78 309 312 73.6
D 8 195 266554 3454.94 312 303 77.1
D 13 249 122316 1583.27 312 303 77.1
D 1 52 94253 1219.12 312 303 77.1

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