ASTROSAT CZTI

Data Quality Report

Orbit 07390

Creation date: 2024-06-27T15:19:12.655767
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/AS1G06_117T01_9000001012_07390cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07390cztM0_level2_quad_clean.evt
Size (bytes)821,358,720126,676,800
Size783.3 MB 120.8 MB
Events in quadrant A6,378,768756,309
Events in quadrant B5,834,505777,163
Events in quadrant C5,372,441770,818
Events in quadrant D6,497,328723,046

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164
B0162
C0163
D0187

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0289052124
B0270902115
C0263062097
D0301082730

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025721
B025723
C025824
D025719

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A116921441.231611%
B116852011.720154%
C117271170.997698%
D116192281.962303%

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 14211 11940 34 34 0.24% 0.28%
B 14212 11934 100 100 0.70% 0.84%
C 14212 11968 41 41 0.29% 0.34%
D 14212 11884 111 111 0.78% 0.93%

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 0 23 802601 2852.02 1366 1335 280.9
A 0 128 202666 716.62 1366 1335 280.9
A 0 226 68162 237.86 1366 1335 280.9
B 11 51 355185 1344.19 1375 1342 263.2
B 0 214 116217 436.39 1375 1342 263.2
B 12 111 27474 99.27 1375 1342 263.2
C 9 68 136888 436.42 1333 1338 310.6
C 1 16 31281 96.41 1333 1338 310.6
C 13 61 10510 29.53 1333 1338 310.6
D 2 216 664062 2037.43 1318 1273 325.3
D 14 34 271267 829.97 1318 1273 325.3
D 5 233 220437 673.72 1318 1273 325.3

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