ASTROSAT CZTI

Data Quality Report

Orbit 47738

Creation date: 2024-07-26T18:21:24.320628
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/AS1T05_213T01_9000006344_47738cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47738cztM0_level2_quad_clean.evt
Size (bytes)460,872,000107,625,600
Size439.5 MB 102.6 MB
Events in quadrant A6,963,526690,224
Events in quadrant B3,197,329734,998
Events in quadrant C2,843,567722,530
Events in quadrant D3,539,456648,028

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257781
B0142172
C0135681
D0152301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66464046.078844%
B6646951.429431%
C6646470.707192%
D66461992.994282%

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 7556 6647 136 136 1.80% 2.05%
B 7556 6647 11 11 0.15% 0.17%
C 7556 6647 0 0 0.00% 0.00%
D 7556 6647 110 110 1.46% 1.65%

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 3700541 24717.36 724 707 149.7
A 7 3 367757 2452.14 724 707 149.7
A 9 191 65897 435.51 724 707 149.7
B 0 200 269143 1884.84 724 699 142.4
B 5 32 22928 156.08 724 699 142.4
B 12 111 18118 122.31 724 699 142.4
C 0 207 10138 55.83 723 725 168.6
C 14 254 9044 49.34 723 725 168.6
C 12 250 6808 36.08 723 725 168.6
D 2 165 568103 3128.62 725 702 181.4
D 10 181 67865 370.33 725 702 181.4
D 2 234 32242 173.91 725 702 181.4

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