ASTROSAT CZTI

Data Quality Report

Orbit 43744

Creation date: 2024-06-27T22:55:16.205280
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_003T01_9000005902_43744cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43744cztM0_level2_quad_clean.evt
Size (bytes)474,425,280107,435,520
Size452.4 MB 102.5 MB
Events in quadrant A4,004,985715,542
Events in quadrant B3,678,179728,012
Events in quadrant C3,733,082718,603
Events in quadrant D5,622,314621,336

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160981
B0156001
C0158061
D0213591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6736580.861045%
B67371772.627282%
C6737630.935134%
D67374787.095146%

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 7596 6737 8 8 0.11% 0.12%
B 7597 6738 80 80 1.05% 1.19%
C 7597 6738 52 52 0.68% 0.77%
D 7597 6738 366 366 4.82% 5.43%

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 866044 5619.06 742 726 154.0
A 14 63 156752 1013.18 742 726 154.0
A 15 174 41928 267.55 742 726 154.0
B 5 235 356618 2444.64 739 715 145.6
B 4 80 125840 859.46 739 715 145.6
B 4 171 94020 640.9 739 715 145.6
C 15 158 388795 2220.08 732 736 174.8
C 3 233 238081 1357.85 732 736 174.8
C 14 96 79955 453.21 732 736 174.8
D 1 52 864025 4758.98 711 690 181.4
D 13 249 231838 1274.16 711 690 181.4
D 7 80 215199 1182.44 711 690 181.4

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