ASTROSAT CZTI

Data Quality Report

Orbit 03633

Creation date: 2024-06-27T14:31:46.465248
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/AS1G05_234T02_9000000474_03633cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03633cztM0_level2_quad_clean.evt
Size (bytes)431,573,76083,908,800
Size411.6 MB 80.0 MB
Events in quadrant A2,862,595548,564
Events in quadrant B3,376,149540,564
Events in quadrant C3,461,982520,662
Events in quadrant D2,970,415521,276

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123972
B0138291
C0141941
D0126651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58641342.285130%
B58641402.387449%
C58643185.422920%
D58641021.739427%

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 7079 5865 5 5 0.07% 0.09%
B 7079 5865 16 16 0.23% 0.27%
C 7079 5865 181 181 2.56% 3.09%
D 7079 5865 17 17 0.24% 0.29%

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 50 95748 673.07 700 685 141.2
A 3 1 38678 269.0 700 685 141.2
A 14 238 18411 125.5 700 685 141.2
B 15 204 301217 2268.06 702 685 132.5
B 4 239 89015 666.61 702 685 132.5
B 4 81 45259 336.39 702 685 132.5
C 2 53 679379 4388.4 668 670 154.7
C 9 247 145383 935.69 668 670 154.7
C 1 16 21883 137.16 668 670 154.7
D 8 195 126547 772.78 685 666 162.9
D 13 223 43473 262.79 685 666 162.9
D 14 34 35099 211.38 685 666 162.9

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
Veto Counter