ASTROSAT CZTI

Data Quality Report

Orbit 14017

Creation date: 2024-06-27T16:49:12.268734
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/AS1G08_064T01_9000002070_14017cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14017cztM0_level2_quad_clean.evt
Size (bytes)511,920,00090,259,200
Size488.2 MB 86.1 MB
Events in quadrant A3,725,746552,994
Events in quadrant B3,661,418558,714
Events in quadrant C3,542,260559,305
Events in quadrant D4,062,151537,823

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161283
B0158622
C0155642
D0172662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75301792.377158%
B75302202.921647%
C75301181.567065%
D75301642.177955%

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 8071 7534 0 0 0.00% 0.00%
B 8071 7534 3 3 0.04% 0.04%
C 8071 7534 2 2 0.02% 0.03%
D 8071 7534 29 29 0.36% 0.38%

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 8 15 210581 1136.82 895 873 184.5
A 1 162 30385 159.98 895 873 184.5
A 4 2 15311 78.27 895 873 184.5
B 10 16 85752 487.71 894 868 174.0
B 0 214 32669 182.72 894 868 174.0
B 0 189 22233 122.76 894 868 174.0
C 3 233 109605 533.53 876 879 203.8
C 6 253 15146 70.01 876 879 203.8
C 13 61 6309 26.65 876 879 203.8
D 8 195 220031 964.64 864 844 227.2
D 1 52 150434 658.34 864 844 227.2
D 13 189 146153 639.5 864 844 227.2

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