ASTROSAT CZTI

Data Quality Report

Orbit 45809

Creation date: 2024-06-27T23:16:25.079825
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_088T01_9000006126_45809cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45809cztM0_level2_quad_clean.evt
Size (bytes)736,479,360100,252,800
Size702.4 MB 95.6 MB
Events in quadrant A5,772,440732,435
Events in quadrant B6,133,528728,059
Events in quadrant C2,994,084742,323
Events in quadrant D11,865,236384,042

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208651
B0226851
C0133051
D0397321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64242263.518057%
B64246089.464508%
C64241051.634496%
D6424323850.404732%

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 7459 6425 0 0 0.00% 0.00%
B 7459 6425 295 295 3.95% 4.59%
C 7459 6425 8 8 0.11% 0.12%
D 7459 6425 2920 2920 39.15% 45.45%

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 2860505 18438.06 748 731 155.1
A 13 254 12152 73.64 748 731 155.1
A 13 248 9706 57.87 748 731 155.1
B 3 112 2736705 19562.14 733 712 139.9
B 4 171 80594 571.15 733 712 139.9
B 0 190 77047 545.79 733 712 139.9
C 12 2 53153 298.22 751 753 175.7
C 2 14 5460 26.79 751 753 175.7
C 13 61 5195 25.28 751 753 175.7
D 1 47 4245298 27811.71 604 585 152.6
D 11 241 3873066 25372.82 604 585 152.6
D 1 52 400404 2619.65 604 585 152.6

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