ASTROSAT CZTI

Data Quality Report

Orbit 01354

Creation date: 2024-06-27T14:11:25.821535
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/AS1G04_002T02_9000000230_01354cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01354cztM0_level2_quad_clean.evt
Size (bytes)1,209,303,36093,360,960
Size1.1 GB 89.0 MB
Events in quadrant A10,075,373608,216
Events in quadrant B9,373,518616,443
Events in quadrant C7,628,321602,413
Events in quadrant D9,121,924550,657

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0344952
B0323761
C0272291
D0318391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64402433.773292%
B6440661.024845%
C6440440.683230%
D644090714.083851%

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 7130 6440 1157 1157 16.23% 17.97%
B 7130 6440 734 734 10.29% 11.40%
C 7130 6440 152 152 2.13% 2.36%
D 7130 6440 1192 1192 16.72% 18.51%

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 15 127 2265283 4710.9 1970 1982 480.4
A 4 32 167930 345.41 1970 1982 480.4
A 15 233 47420 94.57 1970 1982 480.4
B 8 4 1113441 2299.44 2054 2063 483.3
B 12 52 176218 360.33 2054 2063 483.3
B 6 53 121418 246.94 2054 2063 483.3
C 15 241 137762 257.28 1890 1959 527.8
C 3 79 36136 64.75 1890 1959 527.8
C 3 111 27943 49.23 1890 1959 527.8
D 12 22 2229478 4151.3 1723 1788 536.6
D 9 53 108599 199.04 1723 1788 536.6
D 10 84 54829 98.84 1723 1788 536.6

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