ASTROSAT CZTI

Data Quality Report

Orbit 46619

Creation date: 2024-06-27T23:25:30.024694
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_080T02_9000006242_46619cztM0_level2.fits modeM0/AS1A13_080T02_9000006242_46619cztM0_level2_quad_clean.evt
Size (bytes)491,402,880111,159,360
Size468.6 MB 106.0 MB
Events in quadrant A6,264,614719,504
Events in quadrant B3,541,823781,167
Events in quadrant C2,983,621762,287
Events in quadrant D4,902,206655,277

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226334
B0150532
C0138892
D0190462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64192854.439944%
B64191041.620190%
C6419620.965883%
D64194276.652126%

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 7589 6420 164 164 2.16% 2.55%
B 7589 6420 46 46 0.61% 0.72%
C 7589 6420 21 21 0.28% 0.33%
D 7589 6420 324 324 4.27% 5.05%

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 10 83 3253450 22385.98 704 690 145.3
A 9 191 164334 1126.22 704 690 145.3
A 0 247 41506 280.9 704 690 145.3
B 15 201 308909 2268.26 703 683 135.9
B 0 189 245739 1803.39 703 683 135.9
B 5 32 82112 599.24 703 683 135.9
C 14 254 220553 1347.19 701 705 163.2
C 9 237 10461 59.78 701 705 163.2
C 12 249 10329 58.97 701 705 163.2
D 12 128 571673 3332.31 688 667 171.4
D 13 249 512118 2984.75 688 667 171.4
D 1 52 396005 2307.14 688 667 171.4

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