ASTROSAT CZTI

Data Quality Report

Orbit 05591

Creation date: 2024-06-27T14:57:00.276062
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/AS1G06_034T01_9000000722_05591cztM0_level2.evt modeM0/AS1G06_034T01_9000000722_05591cztM0_level2_quad_clean.evt
Size (bytes)533,629,440104,860,800
Size508.9 MB 100.0 MB
Events in quadrant A3,840,735667,524
Events in quadrant B3,928,579675,336
Events in quadrant C3,603,415664,102
Events in quadrant D4,261,601629,121

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167523
B0169482
C0161022
D0180962

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77601942.500000%
B77601602.061856%
C7760600.773196%
D77602052.641753%

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 8440 7763 63 63 0.75% 0.81%
B 8440 7763 8 8 0.09% 0.10%
C 8440 7763 0 0 0.00% 0.00%
D 8440 7763 101 101 1.20% 1.30%

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 14 111 209821 1095.11 932 913 190.8
A 0 50 25956 131.28 932 913 190.8
A 13 14 10366 49.55 932 913 190.8
B 0 219 59570 322.14 950 930 182.0
B 15 54 37886 203.02 950 930 182.0
B 0 214 33677 179.89 950 930 182.0
C 13 61 7350 30.02 919 924 214.1
C 12 4 6123 24.29 919 924 214.1
C 8 128 5311 20.49 919 924 214.1
D 2 33 176942 780.15 911 884 225.7
D 2 152 161120 710.04 911 884 225.7
D 13 105 127143 559.48 911 884 225.7

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