ASTROSAT CZTI

Data Quality Report

Orbit 13586

Creation date: 2024-06-27T16:43:04.356431
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/AS1A04_193T01_9000002004_13586cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13586cztM0_level2_quad_clean.evt
Size (bytes)540,365,760123,828,480
Size515.3 MB 118.1 MB
Events in quadrant A3,079,766849,844
Events in quadrant B4,047,782830,226
Events in quadrant C3,222,711840,485
Events in quadrant D5,565,053767,473

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134813
B0163582
C0136652
D0209632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6630320.482655%
B66304366.576169%
C6630380.573152%
D66306599.939668%

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 7616 6631 0 0 0.00% 0.00%
B 7615 6630 311 311 4.08% 4.69%
C 7616 6631 0 0 0.00% 0.00%
D 7615 6630 617 617 8.10% 9.31%

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 1 162 25700 156.99 786 769 158.8
A 2 250 14445 86.12 786 769 158.8
A 1 178 8680 49.81 786 769 158.8
B 0 182 925053 6472.11 763 744 142.8
B 3 64 39058 268.28 763 744 142.8
B 0 85 32672 223.56 763 744 142.8
C 3 233 204139 1146.92 769 774 177.3
C 0 207 15900 85.31 769 774 177.3
C 13 61 5598 27.21 769 774 177.3
D 13 122 1901688 10902.34 735 712 174.4
D 5 222 544671 3119.67 735 712 174.4
D 1 20 223701 1278.87 735 712 174.4

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