ASTROSAT CZTI

Data Quality Report

Orbit 14144

Creation date: 2024-06-27T16:50:59.828520
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_224T05_9000002088_14144cztM0_level2.evt modeM0/AS1A04_224T05_9000002088_14144cztM0_level2_quad_clean.evt
Size (bytes)252,092,16037,362,240
Size240.4 MB 35.6 MB
Events in quadrant A1,702,388224,227
Events in quadrant B1,689,253228,848
Events in quadrant C1,805,075232,002
Events in quadrant D2,216,351215,775

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069822
B069321
C071341
D085861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3232531.639851%
B3232732.258663%
C3232601.856436%
D32322477.642327%

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 4003 3234 0 0 0.00% 0.00%
B 4003 3234 0 0 0.00% 0.00%
C 4003 3234 0 0 0.00% 0.00%
D 4003 3234 150 150 3.75% 4.64%

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 12 189 30983 347.17 426 416 88.0
A 9 143 26586 297.23 426 416 88.0
A 0 226 3769 38.08 426 416 88.0
B 0 189 12480 144.58 423 412 83.5
B 12 111 9934 114.08 423 412 83.5
B 11 111 8572 97.76 423 412 83.5
C 3 233 181378 1837.2 414 416 98.5
C 10 22 6875 65.57 414 416 98.5
C 13 61 3016 26.4 414 416 98.5
D 1 52 317505 3250.19 404 393 97.6
D 7 80 279739 2863.11 404 393 97.6
D 2 14 27303 275.81 404 393 97.6

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