ASTROSAT CZTI

Data Quality Report

Orbit 16732

Creation date: 2024-06-27T17:26:56.967786
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_202T01_9000002484_16732cztM0_level2.evt modeM0/AS1A05_202T01_9000002484_16732cztM0_level2_quad_clean.evt
Size (bytes)554,754,240113,221,440
Size529.1 MB 108.0 MB
Events in quadrant A4,981,017735,367
Events in quadrant B3,614,168788,972
Events in quadrant C3,375,682744,385
Events in quadrant D4,407,766725,259

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190462
B0147931
C0141041
D0173601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A623265110.446085%
B62321282.053915%
C62321432.294608%
D62322173.482028%

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 7587 6233 398 398 5.25% 6.39%
B 7588 6234 19 19 0.25% 0.30%
C 7588 6234 7 7 0.09% 0.11%
D 7588 6234 118 118 1.56% 1.89%

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 15 174 1858105 11855.37 804 791 156.7
A 10 234 18347 112.06 804 791 156.7
A 0 226 7217 41.02 804 791 156.7
B 15 35 193250 1269.99 829 811 151.5
B 0 197 45943 297.84 829 811 151.5
B 3 209 35207 226.99 829 811 151.5
C 0 207 170921 962.39 785 791 176.8
C 14 238 126448 710.81 785 791 176.8
C 3 233 13145 69.88 785 791 176.8
D 2 16 323141 1692.83 794 772 190.4
D 15 0 315534 1652.89 794 772 190.4
D 1 52 283181 1482.99 794 772 190.4

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