ASTROSAT CZTI

Data Quality Report

Orbit 46823

Creation date: 2024-06-27T23:28:07.178577
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/AS1C07_001T10_9000006272_46823cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46823cztM0_level2_quad_clean.evt
Size (bytes)499,452,480103,262,400
Size476.3 MB 98.5 MB
Events in quadrant A6,036,882682,104
Events in quadrant B4,608,611694,500
Events in quadrant C2,734,596712,575
Events in quadrant D4,639,635615,817

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219431
B0180191
C0124211
D0179952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60422494.121152%
B60423786.256207%
C6043470.777759%
D60423956.537570%

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 7252 6043 79 79 1.09% 1.31%
B 7252 6043 207 207 2.85% 3.43%
C 7253 6044 8 8 0.11% 0.13%
D 7252 6043 235 235 3.24% 3.89%

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 3291903 23940.86 668 654 137.5
A 0 243 51370 368.91 668 654 137.5
A 9 191 43257 309.89 668 654 137.5
B 3 112 1437831 11278.63 668 647 127.4
B 15 36 112072 874.43 668 647 127.4
B 4 171 109236 852.18 668 647 127.4
C 14 254 43788 271.37 684 687 158.8
C 3 233 9609 56.17 684 687 158.8
C 12 249 9086 52.88 684 687 158.8
D 1 52 910424 5537.19 659 641 164.3
D 12 128 486565 2957.47 659 641 164.3
D 13 249 332037 2016.97 659 641 164.3

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