ASTROSAT CZTI

Data Quality Report

Orbit 34102

Creation date: 2024-06-27T20:56:33.295037
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/AS1A05_208T01_9000004870_34102cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34102cztM0_level2_quad_clean.evt
Size (bytes)2,835,144,000415,186,560
Size2.6 GB 396.0 MB
Events in quadrant A13,515,0102,732,348
Events in quadrant B20,216,4712,694,715
Events in quadrant C18,180,0952,693,061
Events in quadrant D31,979,0672,437,304

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05980
B05980
C05980
D05980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0594846
B0789235
C0719335
D01153395

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29349350.119254%
B2934918326.242121%
C293497622.596341%
D29349370712.630754%

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 44845 29355 14 14 0.03% 0.05%
B 44845 29355 1258 1258 2.81% 4.29%
C 44845 29355 627 627 1.40% 2.14%
D 44845 29355 3688 3688 8.22% 12.56%

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 68766 95.67 3456 3391 683.4
A 13 254 55314 75.98 3456 3391 683.4
A 13 6 49461 67.42 3456 3391 683.4
B 5 172 6038114 9507.5 3357 3267 634.7
B 4 232 295830 460.91 3357 3267 634.7
B 0 189 146877 226.25 3357 3267 634.7
C 0 10 2815139 3646.6 3344 3379 771.1
C 15 214 1237257 1600.23 3344 3379 771.1
C 14 254 590677 761.67 3344 3379 771.1
D 7 223 7444078 9556.19 3199 3113 778.7
D 8 195 5889664 7559.9 3199 3113 778.7
D 13 249 1846612 2367.54 3199 3113 778.7

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