ASTROSAT CZTI

Data Quality Report

Orbit 14111

Creation date: 2024-06-27T16:50:42.478893
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_028T01_9000002080_14111cztM0_level2.evt modeM0/AS1G08_028T01_9000002080_14111cztM0_level2_quad_clean.evt
Size (bytes)474,448,32069,612,480
Size452.5 MB 66.4 MB
Events in quadrant A3,403,341422,349
Events in quadrant B3,548,824422,439
Events in quadrant C3,380,703414,988
Events in quadrant D3,606,431406,381

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139403
B0144692
C0137412
D0147812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6321410.648632%
B6321480.759374%
C6321180.284765%
D63211051.661130%

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 7637 6323 1 1 0.01% 0.02%
B 7637 6323 4 4 0.05% 0.06%
C 7637 6323 0 0 0.00% 0.00%
D 7637 6323 68 68 0.89% 1.08%

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 12 96 11838 62.36 877 864 176.0
A 8 15 9666 50.02 877 864 176.0
A 0 226 7809 39.47 877 864 176.0
B 0 189 46848 285.63 864 847 161.1
B 0 214 43618 265.57 864 847 161.1
B 4 80 20929 124.69 864 847 161.1
C 3 233 101442 523.59 838 846 192.1
C 14 234 8034 37.41 838 846 192.1
C 13 61 6110 27.4 838 846 192.1
D 1 52 352441 1777.44 838 822 197.8
D 2 152 32184 158.54 838 822 197.8
D 7 223 22780 111.0 838 822 197.8

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