ASTROSAT CZTI

Data Quality Report

Orbit 22178

Creation date: 2024-06-27T18:38:05.119919
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/AS1A07_134T02_9000003282_22178cztM0_level2.evt modeM0/AS1A07_134T02_9000003282_22178cztM0_level2_quad_clean.evt
Size (bytes)200,088,00027,457,920
Size190.8 MB 26.2 MB
Events in quadrant A1,458,356161,764
Events in quadrant B1,506,763163,129
Events in quadrant C1,444,527153,359
Events in quadrant D1,460,452155,242

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059371
B060351
C059341
D060491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27621114.018827%
B27621254.525706%
C27621415.104996%
D27621063.837799%

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 3412 2763 0 0 0.00% 0.00%
B 3412 2763 0 0 0.00% 0.00%
C 3412 2763 0 0 0.00% 0.00%
D 3412 2763 2 2 0.06% 0.07%

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 13 254 5058 59.99 377 369 78.2
A 3 137 3436 39.24 377 369 78.2
A 0 226 3221 36.49 377 369 78.2
B 0 190 31742 418.86 370 359 74.9
B 0 219 16345 213.36 370 359 74.9
B 12 111 8988 115.17 370 359 74.9
C 14 238 54706 631.23 356 357 86.1
C 13 61 2509 24.99 356 357 86.1
C 15 78 877 6.04 356 357 86.1
D 1 52 23583 249.52 369 357 93.1
D 13 172 16096 169.09 369 357 93.1
D 2 234 12328 128.61 369 357 93.1

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