ASTROSAT CZTI

Data Quality Report

Orbit 15528

Creation date: 2024-06-27T17:09:53.516950
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_058T09_9000002300_15528cztM0_level2.evt modeM0/AS1G08_058T09_9000002300_15528cztM0_level2_quad_clean.evt
Size (bytes)454,821,12094,227,840
Size433.8 MB 89.9 MB
Events in quadrant A3,264,180613,160
Events in quadrant B3,339,365618,666
Events in quadrant C3,242,484583,561
Events in quadrant D3,483,241581,627

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135893
B0138412
C0136102
D0146132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6552490.747863%
B6552701.068376%
C6552691.053114%
D6552350.534188%

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 7718 6553 0 0 0.00% 0.00%
B 7718 6553 5 5 0.06% 0.08%
C 7718 6553 0 0 0.00% 0.00%
D 7718 6554 3 3 0.04% 0.05%

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 0 253 60857 359.92 829 814 166.8
A 9 143 12020 67.17 829 814 166.8
A 0 226 7451 39.78 829 814 166.8
B 4 173 31244 194.62 822 802 156.4
B 0 189 27751 172.29 822 802 156.4
B 15 222 26745 165.86 822 802 156.4
C 14 238 122590 672.2 781 787 181.2
C 3 233 47554 258.1 781 787 181.2
C 7 247 20558 109.11 781 787 181.2
D 12 110 308472 1569.71 804 782 196.0
D 5 222 69408 350.1 804 782 196.0
D 2 234 23652 116.67 804 782 196.0

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