ASTROSAT CZTI

Data Quality Report

Orbit 45652

Creation date: 2024-06-27T23:14:36.632698
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_071T07_9000006116_45652cztM0_level2.fits modeM0/AS1A13_071T07_9000006116_45652cztM0_level2_quad_clean.evt
Size (bytes)616,682,880116,830,080
Size588.1 MB 111.4 MB
Events in quadrant A6,403,193799,752
Events in quadrant B4,454,730802,951
Events in quadrant C3,962,984771,694
Events in quadrant D7,435,430649,229

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241690
B0182930
C0172180
D0271861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73751992.698305%
B73763164.284165%
C73761852.508134%
D7375100413.613559%

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 7375 7375 13 13 0.18% 0.18%
B 7376 7376 153 153 2.07% 2.07%
C 7376 7376 140 140 1.90% 1.90%
D 7375 7375 867 867 11.76% 11.76%

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 3038396 17713.44 820 801 171.5
A 2 79 68472 394.62 820 801 171.5
A 0 243 28636 162.32 820 801 171.5
B 5 172 410101 2586.92 811 785 158.2
B 12 18 240434 1514.61 811 785 158.2
B 0 183 128434 806.76 811 785 158.2
C 14 254 800479 4308.13 793 795 185.6
C 9 54 15235 77.79 793 795 185.6
C 0 64 15155 77.36 793 795 185.6
D 8 129 2545392 13180.34 759 731 193.1
D 1 52 908125 4699.94 759 731 193.1
D 11 241 497701 2574.11 759 731 193.1

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