ASTROSAT CZTI

Data Quality Report

Orbit 03617

Creation date: 2024-06-27T14:31:39.699243
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/AS1G05_234T02_9000000474_03617cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03617cztM0_level2_quad_clean.evt
Size (bytes)477,028,80090,838,080
Size454.9 MB 86.6 MB
Events in quadrant A3,254,368584,717
Events in quadrant B3,829,641581,356
Events in quadrant C3,569,567567,196
Events in quadrant D3,344,965557,446

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140143
B0154732
C0151922
D0144812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65991311.985149%
B65991101.666919%
C65991362.060918%
D65991542.333687%

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 7774 6600 15 15 0.19% 0.23%
B 7774 6600 4 4 0.05% 0.06%
C 7774 6600 33 33 0.42% 0.50%
D 7774 6600 62 62 0.80% 0.94%

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 0 50 75910 459.33 807 791 163.5
A 0 128 20225 118.83 807 791 163.5
A 3 1 16059 93.36 807 791 163.5
B 3 0 347483 2242.9 809 791 154.6
B 15 204 162968 1049.19 809 791 154.6
B 4 81 50636 322.47 809 791 154.6
C 9 247 289342 1620.76 772 774 178.0
C 2 53 222705 1246.49 772 774 178.0
C 1 16 14210 75.46 772 774 178.0
D 13 223 160261 862.02 777 756 185.0
D 13 46 113476 609.18 777 756 185.0
D 5 233 36792 194.75 777 756 185.0

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
Veto Counter