ASTROSAT CZTI

Data Quality Report

Orbit 07598

Creation date: 2024-06-27T15:21:37.598818
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/AS1G06_117T01_9000001046_07598cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07598cztM0_level2_quad_clean.evt
Size (bytes)567,198,72065,940,480
Size540.9 MB 62.9 MB
Events in quadrant A3,589,057400,511
Events in quadrant B3,494,913406,533
Events in quadrant C5,783,483362,802
Events in quadrant D3,874,477377,581

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145933
B0142602
C0216082
D0156512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64281061.649035%
B64281432.224642%
C64285969.271935%
D64281692.629123%

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 7743 6429 1 1 0.01% 0.02%
B 7743 6429 23 23 0.30% 0.36%
C 7743 6428 364 364 4.70% 5.66%
D 7743 6429 79 79 1.02% 1.23%

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 15 239 289434 1688.5 857 841 170.9
A 0 226 8022 42.01 857 841 170.9
A 12 194 7590 39.49 857 841 170.9
B 4 81 150426 935.19 851 833 160.0
B 0 214 30130 183.15 851 833 160.0
B 12 111 16239 96.31 851 833 160.0
C 9 68 1502507 8318.71 791 795 180.5
C 4 254 1034473 5726.05 791 795 180.5
C 8 229 112542 619.02 791 795 180.5
D 2 14 295537 1461.28 825 802 201.7
D 5 233 239325 1182.58 825 802 201.7
D 2 152 112174 552.18 825 802 201.7

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