ASTROSAT CZTI

Data Quality Report

Orbit 44297

Creation date: 2024-06-27T23:01:42.895299
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_012T08_9000005986_44297cztM0_level2.fits modeM0/AS1A13_012T08_9000005986_44297cztM0_level2_quad_clean.evt
Size (bytes)524,479,680103,910,400
Size500.2 MB 99.1 MB
Events in quadrant A6,663,124674,753
Events in quadrant B3,875,469726,085
Events in quadrant C3,035,659697,586
Events in quadrant D5,336,065594,293

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01342
B01342
C01342
D01342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025219512
B016018202
C013825182
D020513231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64776309.726725%
B65051742.674865%
C6511861.320842%
D65036439.887744%

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 7491 6496 348 348 4.65% 5.36%
B 7501 6528 30 30 0.40% 0.46%
C 7526 6531 17 17 0.23% 0.26%
D 7515 6530 492 492 6.55% 7.53%

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 15 223 2167750 14414.14 729 714 150.3
A 10 83 1484045 9866.45 729 714 150.3
A 12 227 70282 462.73 729 714 150.3
B 5 255 439597 3009.71 737 715 145.8
B 0 229 213200 1457.15 737 715 145.8
B 0 190 137908 940.82 737 715 145.8
C 14 254 142701 826.6 727 730 171.8
C 15 208 24951 141.02 727 730 171.8
C 1 3 16262 90.43 727 730 171.8
D 13 249 801435 4544.38 704 682 176.2
D 12 2 421628 2388.92 704 682 176.2
D 12 1 306290 1734.37 704 682 176.2

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