ASTROSAT CZTI

Data Quality Report

Orbit 15533

Creation date: 2024-06-27T17:09:58.159314
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/AS1G08_058T09_9000002300_15533cztM0_level2.evt modeM0/AS1G08_058T09_9000002300_15533cztM0_level2_quad_clean.evt
Size (bytes)479,160,00071,254,080
Size457.0 MB 68.0 MB
Events in quadrant A3,371,095432,113
Events in quadrant B3,525,634433,404
Events in quadrant C3,448,439415,430
Events in quadrant D3,718,814417,214

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139163
B0143952
C0140622
D0151372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65911031.562737%
B65911231.866181%
C65911241.881353%
D65912654.020634%

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 7592 6593 0 0 0.00% 0.00%
B 7592 6593 1 1 0.01% 0.02%
C 7592 6593 0 0 0.00% 0.00%
D 7592 6593 162 162 2.13% 2.46%

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 0 253 34891 196.27 861 843 173.5
A 7 16 16039 87.6 861 843 173.5
A 0 226 7523 38.51 861 843 173.5
B 4 48 47215 282.67 853 835 164.1
B 0 197 22797 133.85 853 835 164.1
B 0 189 21656 126.9 853 835 164.1
C 14 238 124677 651.72 816 822 190.0
C 3 233 111321 581.44 816 822 190.0
C 9 54 10845 52.74 816 822 190.0
D 1 52 377875 1848.35 829 805 204.0
D 13 172 103289 502.36 829 805 204.0
D 5 222 76461 370.86 829 805 204.0

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter