ASTROSAT CZTI

Data Quality Report

Orbit 37380

Creation date: 2024-06-27T21:39:14.643585
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/AS1T05_048T01_9000005318_37380cztM0_level2.evt modeM0/AS1T05_048T01_9000005318_37380cztM0_level2_quad_clean.evt
Size (bytes)610,274,88089,092,800
Size582.0 MB 85.0 MB
Events in quadrant A2,989,925582,742
Events in quadrant B3,097,953596,082
Events in quadrant C2,999,191598,107
Events in quadrant D8,997,948509,843

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125293
B0129842
C0124842
D0308212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5877160.272248%
B5877601.020929%
C5877280.476434%
D5877114519.482729%

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 9104 5879 5 5 0.05% 0.09%
B 9104 5879 40 40 0.44% 0.68%
C 9104 5879 22 22 0.24% 0.37%
D 9104 5879 1554 1554 17.07% 26.43%

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 295057 2153.64 671 657 136.7
A 9 143 42926 309.21 671 657 136.7
A 7 3 40145 288.87 671 657 136.7
B 5 172 144017 1110.59 664 646 129.1
B 0 190 85533 657.56 664 646 129.1
B 4 141 57524 440.59 664 646 129.1
C 15 214 251013 1647.61 652 657 152.0
C 1 23 104499 683.39 652 657 152.0
C 0 10 60486 393.74 652 657 152.0
D 12 235 5730687 37593.96 625 608 152.4
D 10 253 505450 3312.17 625 608 152.4
D 12 227 178738 1168.68 625 608 152.4

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