ASTROSAT CZTI

Data Quality Report

Orbit 09362

Creation date: 2024-06-27T15:45:02.766772
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/AS1G07_040T01_9000001326_09362cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09362cztM0_level2_quad_clean.evt
Size (bytes)190,437,12038,592,000
Size181.6 MB 36.8 MB
Events in quadrant A1,755,018251,075
Events in quadrant B1,344,838256,745
Events in quadrant C1,174,476250,005
Events in quadrant D1,330,841240,624

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069672
B056061
C049891
D055523

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2356863.650255%
B2356522.207131%
C2356281.188455%
D2355441.868365%

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 3526 2357 9 9 0.26% 0.38%
B 3526 2357 3 3 0.09% 0.13%
C 3526 2357 0 0 0.00% 0.00%
D 3526 2357 2 2 0.06% 0.08%

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 8 5 521424 8140.04 312 306 64.0
A 13 251 12243 186.46 312 306 64.0
A 1 162 7692 115.37 312 306 64.0
B 0 214 58089 958.09 310 304 60.3
B 0 219 21816 356.67 310 304 60.3
B 4 173 15506 252.05 310 304 60.3
C 9 68 6581 89.98 298 299 69.8
C 14 67 2350 29.38 298 299 69.8
C 13 61 2221 27.53 298 299 69.8
D 8 195 73867 915.17 299 292 80.4
D 1 52 50972 630.39 299 292 80.4
D 12 233 15585 190.22 299 292 80.4

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