ASTROSAT CZTI

Data Quality Report

Orbit 22207

Creation date: 2024-06-27T18:38:03.027208
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/AS1A07_065T01_9000003284_22207cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22207cztM0_level2_quad_clean.evt
Size (bytes)434,465,28086,037,120
Size414.3 MB 82.1 MB
Events in quadrant A3,117,915545,327
Events in quadrant B3,181,057552,720
Events in quadrant C3,144,763526,339
Events in quadrant D3,264,809520,339

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134192
B0134771
C0134771
D0140271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6606420.635786%
B6607400.605418%
C6607510.771909%
D6607430.650825%

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 7286 6607 0 0 0.00% 0.00%
B 7287 6608 1 1 0.01% 0.02%
C 7287 6608 2 2 0.03% 0.03%
D 7287 6608 7 7 0.10% 0.11%

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 11684 66.55 808 792 163.7
A 0 226 6984 37.83 808 792 163.7
A 3 137 6918 37.43 808 792 163.7
B 12 111 18825 117.85 799 779 153.1
B 4 173 18008 112.51 799 779 153.1
B 11 111 16589 103.24 799 779 153.1
C 14 238 121285 667.97 769 774 180.4
C 10 22 23060 123.53 769 774 180.4
C 13 61 5411 25.7 769 774 180.4
D 1 52 148513 781.78 783 760 189.0
D 2 136 57982 302.77 783 760 189.0
D 15 145 51944 270.82 783 760 189.0

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