ASTROSAT CZTI

Data Quality Report

Orbit 47445

Creation date: 2024-07-06T23:45:35.959448
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/AS1A13_053T01_9000006326_47445cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47445cztM0_level2_quad_clean.evt
Size (bytes)269,835,84043,482,240
Size257.3 MB 41.5 MB
Events in quadrant A3,001,247305,612
Events in quadrant B1,368,234327,655
Events in quadrant C1,245,340311,195
Events in quadrant D4,167,564183,924

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107821
B059361
C056631
D0141931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26311836.955530%
B2631260.988217%
C263190.342075%
D2631104339.642721%

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 2631 2631 46 46 1.75% 1.75%
B 2631 2631 10 10 0.38% 0.38%
C 2631 2631 2 2 0.08% 0.08%
D 2631 2631 1014 1014 38.54% 38.54%

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 10 83 1689264 26742.41 304 298 63.2
A 9 191 135548 2141.49 304 298 63.2
A 3 137 3499 50.68 304 298 63.2
B 5 32 57485 945.72 306 297 60.5
B 0 198 44833 736.5 306 297 60.5
B 0 190 21806 355.7 306 297 60.5
C 3 233 48549 688.15 294 295 70.1
C 1 3 41560 588.48 294 295 70.1
C 12 250 5049 67.8 294 295 70.1
D 2 165 1595197 24699.12 255 246 64.6
D 6 112 1409828 21828.53 255 246 64.6
D 12 128 57488 886.43 255 246 64.6

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