ASTROSAT CZTI

Data Quality Report

Orbit 46623

Creation date: 2024-06-27T23:25:32.720567
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/AS1A13_080T02_9000006242_46623cztM0_level2.fits modeM0/AS1A13_080T02_9000006242_46623cztM0_level2_quad_clean.evt
Size (bytes)542,436,480137,649,600
Size517.3 MB 131.3 MB
Events in quadrant A6,729,197933,332
Events in quadrant B3,726,398885,315
Events in quadrant C3,937,810928,464
Events in quadrant D5,093,463890,163

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246910
B0167950
C0173560
D0203980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76353114.073346%
B76352533.313687%
C76351872.449247%
D76353424.479371%

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 7635 7635 3 3 0.04% 0.04%
B 7635 7635 19 19 0.25% 0.25%
C 7635 7635 56 56 0.73% 0.73%
D 7635 7635 217 217 2.84% 2.84%

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 3280823 18082.03 861 844 181.4
A 9 191 53256 288.94 861 844 181.4
A 7 3 51034 276.69 861 844 181.4
B 5 32 128795 780.27 834 810 164.0
B 15 201 105264 636.81 834 810 164.0
B 0 189 71344 430.02 834 810 164.0
C 9 54 268461 1305.26 854 857 205.0
C 14 254 255996 1244.46 854 857 205.0
C 12 249 56776 272.75 854 857 205.0
D 1 52 620945 2749.73 867 839 225.5
D 13 249 549416 2432.55 867 839 225.5
D 15 127 121987 537.2 867 839 225.5

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