ASTROSAT CZTI

Data Quality Report

Orbit 48432

Creation date: 2024-09-11T14:06:50.599130
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_029T01_9000006426_48432cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48432cztM0_level2_quad_clean.evt
Size (bytes)481,196,160112,533,120
Size458.9 MB 107.3 MB
Events in quadrant A6,987,691743,209
Events in quadrant B3,151,629783,942
Events in quadrant C3,775,373742,714
Events in quadrant D3,386,170678,014

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259832
B0138332
C0158022
D0147152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65952573.896892%
B6595951.440485%
C6596951.440267%
D6596901.364463%

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 7755 6596 60 60 0.77% 0.91%
B 7755 6596 14 14 0.18% 0.21%
C 7756 6597 37 37 0.48% 0.56%
D 7756 6597 34 34 0.44% 0.52%

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 4064040 25800.0 755 739 157.5
A 13 254 12310 73.47 755 739 157.5
A 3 137 8630 50.1 755 739 157.5
B 12 16 70911 467.03 756 733 150.3
B 0 186 45807 299.96 756 733 150.3
B 5 255 20834 133.77 756 733 150.3
C 15 208 679291 3847.57 749 754 176.4
C 12 2 159583 900.62 749 754 176.4
C 12 249 6504 32.6 749 754 176.4
D 12 233 116404 609.72 755 734 189.7
D 7 38 93816 490.65 755 734 189.7
D 2 165 75281 392.95 755 734 189.7

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