ASTROSAT CZTI

Data Quality Report

Orbit 45009

Creation date: 2024-06-27T23:08:58.666902
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_020T01_9000006040_45009cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45009cztM0_level2_quad_clean.evt
Size (bytes)512,285,760104,906,880
Size488.6 MB 100.0 MB
Events in quadrant A5,177,427709,934
Events in quadrant B4,124,966719,472
Events in quadrant C2,835,956712,493
Events in quadrant D6,357,189613,062

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192761
B0162082
C0124341
D0230051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60361632.700464%
B60362484.108681%
C6036270.447316%
D60364978.233930%

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 7211 6037 19 19 0.26% 0.31%
B 7211 6037 122 122 1.69% 2.02%
C 7211 6037 1 1 0.01% 0.02%
D 7211 6036 446 446 6.18% 7.39%

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 2203950 14856.5 718 703 148.3
A 13 248 135146 906.55 718 703 148.3
A 10 248 39941 264.58 718 703 148.3
B 4 171 708230 5140.86 708 688 137.6
B 15 36 126077 911.05 708 688 137.6
B 5 172 116847 843.99 708 688 137.6
C 15 208 22699 132.63 711 716 165.7
C 3 9 17261 99.82 711 716 165.7
C 3 233 10499 59.02 711 716 165.7
D 11 241 1541828 8873.1 696 676 173.7
D 1 52 485615 2792.01 696 676 173.7
D 13 249 324621 1865.09 696 676 173.7

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