ASTROSAT CZTI

Data Quality Report

Orbit 43202

Creation date: 2024-06-27T22:49:15.519312
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/AS1A09_036T17_9000005858_43202cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43202cztM0_level2_quad_clean.evt
Size (bytes)366,552,00089,867,520
Size349.6 MB 85.7 MB
Events in quadrant A3,942,779588,681
Events in quadrant B2,722,468617,044
Events in quadrant C2,615,976595,270
Events in quadrant D3,855,892532,347

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153642
B0117972
C0112212
D0152112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55441562.813853%
B5545220.396754%
C554560.108206%
D55451963.534716%

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 7305 5545 124 124 1.70% 2.24%
B 7306 5546 15 15 0.21% 0.27%
C 7306 5546 1 1 0.01% 0.02%
D 7306 5546 199 199 2.72% 3.59%

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 631122 5034.45 607 594 125.2
A 15 237 386734 3083.13 607 594 125.2
A 12 189 342193 2727.49 607 594 125.2
B 0 229 117325 971.14 610 593 120.2
B 0 186 104421 863.79 610 593 120.2
B 3 112 34164 279.29 610 593 120.2
C 15 214 233096 1640.73 599 603 141.7
C 14 254 38013 264.01 599 603 141.7
C 4 254 10448 69.48 599 603 141.7
D 1 52 1032638 6922.46 594 576 149.1
D 12 16 425685 2851.38 594 576 149.1
D 13 249 41396 273.8 594 576 149.1

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