ASTROSAT CZTI

Data Quality Report

Orbit 47443

Creation date: 2024-07-06T20:17:31.795314
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_47443cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47443cztM0_level2_quad_clean.evt
Size (bytes)470,514,240105,672,960
Size448.7 MB 100.8 MB
Events in quadrant A6,792,830697,683
Events in quadrant B3,293,232719,282
Events in quadrant C2,822,608699,750
Events in quadrant D4,006,871631,814

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246641
B0141521
C0131341
D0163721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64632263.496828%
B64631061.640105%
C6463340.526071%
D64631983.063593%

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 7503 6464 38 38 0.51% 0.59%
B 7503 6464 35 35 0.47% 0.54%
C 7503 6464 1 1 0.01% 0.02%
D 7503 6464 137 137 1.83% 2.12%

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 3737177 24928.42 720 704 149.9
A 9 191 224532 1493.3 720 704 149.9
A 9 240 29148 189.77 720 704 149.9
B 5 32 287085 2035.74 719 696 140.7
B 5 255 50965 357.33 719 696 140.7
B 5 171 26404 182.74 719 696 140.7
C 3 233 36245 214.37 710 713 165.8
C 0 207 8701 48.19 710 713 165.8
C 1 3 4947 25.54 710 713 165.8
D 2 165 487822 2753.09 707 685 176.9
D 2 249 339539 1915.06 707 685 176.9
D 12 233 102050 572.87 707 685 176.9

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