ASTROSAT CZTI

Data Quality Report

Orbit 15734

Creation date: 2024-06-27T17:12:46.716829
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/AS1C03_015T04_9000002328_15734cztM0_level2.evt modeM0/AS1C03_015T04_9000002328_15734cztM0_level2_quad_clean.evt
Size (bytes)456,932,160129,913,920
Size435.8 MB 123.9 MB
Events in quadrant A3,060,228880,073
Events in quadrant B3,158,739908,293
Events in quadrant C3,128,363863,410
Events in quadrant D4,049,136829,760

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134133
B0135852
C0136022
D0166272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6500210.323077%
B6500260.400000%
C6500580.892308%
D65002644.061538%

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 7806 6502 6 6 0.08% 0.09%
B 7806 6502 0 0 0.00% 0.00%
C 7806 6502 0 0 0.00% 0.00%
D 7806 6502 196 196 2.51% 3.01%

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 13 248 40379 256.58 776 760 154.4
A 15 239 17097 105.8 776 760 154.4
A 15 157 14336 87.92 776 760 154.4
B 5 65 22211 147.5 784 765 145.4
B 3 209 18736 123.6 784 765 145.4
B 0 219 16625 109.08 784 765 145.4
C 14 238 123230 713.11 745 750 171.8
C 3 233 82568 476.36 745 750 171.8
C 8 222 6733 34.83 745 750 171.8
D 1 52 1108899 5890.69 732 714 188.1
D 8 173 55000 288.56 732 714 188.1
D 2 234 27079 140.15 732 714 188.1

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