ASTROSAT CZTI

Data Quality Report

Orbit 03319

Creation date: 2024-06-27T14:27:32.576075
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_241T02_9000000448_03319cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03319cztM0_level2_quad_clean.evt
Size (bytes)519,465,60076,132,800
Size495.4 MB 72.6 MB
Events in quadrant A3,448,336445,843
Events in quadrant B4,725,238451,783
Events in quadrant C3,486,686451,983
Events in quadrant D3,562,397433,709

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157272
B0190001
C0157741
D0162581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74982182.907442%
B74982623.494265%
C74981061.413710%
D74981491.987197%

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 7523 7499 2 2 0.03% 0.03%
B 7523 7499 33 33 0.44% 0.44%
C 7523 7499 2 2 0.03% 0.03%
D 7523 7499 34 34 0.45% 0.45%

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 20639 107.33 882 857 184.3
A 0 118 19811 102.84 882 857 184.3
A 0 226 10943 54.72 882 857 184.3
B 15 204 951468 5420.16 887 865 175.4
B 2 249 233831 1328.33 887 865 175.4
B 0 229 50562 283.36 887 865 175.4
C 12 4 37275 178.21 861 864 204.3
C 1 192 25966 122.86 861 864 204.3
C 1 16 15899 73.59 861 864 204.3
D 13 223 136169 644.79 860 833 209.9
D 5 233 60634 284.91 860 833 209.9
D 12 233 22791 104.62 860 833 209.9

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter