ASTROSAT CZTI

Data Quality Report

Orbit 46522

Creation date: 2024-06-27T23:24:11.660506
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_068T07_9000006222_46522cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46522cztM0_level2_quad_clean.evt
Size (bytes)541,114,560114,871,680
Size516.0 MB 109.6 MB
Events in quadrant A7,170,927759,969
Events in quadrant B4,190,744791,001
Events in quadrant C4,172,157736,721
Events in quadrant D3,939,975690,562

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264650
B0170080
C0176470
D0167260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71812593.606740%
B71821141.587302%
C71822072.882206%
D71821011.406294%

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 7181 7181 56 56 0.78% 0.78%
B 7182 7182 43 43 0.60% 0.60%
C 7182 7182 154 154 2.14% 2.14%
D 7182 7182 94 94 1.31% 1.31%

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 3481550 20343.38 812 794 171.1
A 9 191 245528 1430.36 812 794 171.1
A 7 3 101853 590.64 812 794 171.1
B 3 112 431729 2675.15 811 786 161.1
B 4 171 121291 748.06 811 786 161.1
B 0 190 95616 588.67 811 786 161.1
C 9 54 674889 3587.21 792 794 187.9
C 14 254 358484 1903.46 792 794 187.9
C 8 131 11906 59.13 792 794 187.9
D 13 249 212998 1061.63 800 776 199.9
D 1 52 198371 988.46 800 776 199.9
D 13 168 162131 807.17 800 776 199.9

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