ASTROSAT CZTI

Data Quality Report

Orbit 17411

Creation date: 2024-06-27T17:36:09.989761
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/AS1T03_030T01_9000002574_17411cztM0_level2.evt modeM0/AS1T03_030T01_9000002574_17411cztM0_level2_quad_clean.evt
Size (bytes)312,099,84063,555,840
Size297.6 MB 60.6 MB
Events in quadrant A1,907,808431,010
Events in quadrant B2,022,161436,135
Events in quadrant C2,115,560402,126
Events in quadrant D3,153,376392,665

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080151
B083241
C086711
D0119121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A371390.242392%
B3713130.350121%
C3713240.646378%
D37131173.151091%

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 3713 3713 0 0 0.00% 0.00%
B 3713 3713 1 1 0.03% 0.03%
C 3713 3713 0 0 0.00% 0.00%
D 3713 3713 140 140 3.77% 3.77%

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 0 226 4423 39.88 496 489 98.6
A 12 194 3653 32.08 496 489 98.6
A 3 137 3230 27.79 496 489 98.6
B 0 197 45246 484.76 489 478 92.4
B 0 229 16615 174.74 489 478 92.4
B 4 216 16074 168.88 489 478 92.4
C 3 233 205445 1931.29 456 460 106.1
C 14 238 73004 683.48 456 460 106.1
C 5 218 34362 319.41 456 460 106.1
D 11 176 1073282 9364.58 470 458 114.6
D 10 70 90771 788.33 470 458 114.6
D 13 232 78846 684.24 470 458 114.6

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