ASTROSAT CZTI

Data Quality Report

Orbit 10751

Creation date: 2024-06-27T16:03:21.892258
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/AS1A03_064T01_9000001548_10751cztM0_level2.evt modeM0/AS1A03_064T01_9000001548_10751cztM0_level2_quad_clean.evt
Size (bytes)545,120,64063,120,960
Size519.9 MB 60.2 MB
Events in quadrant A3,318,969369,788
Events in quadrant B4,564,647363,660
Events in quadrant C3,122,961368,090
Events in quadrant D5,057,885352,209

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140313
B0179532
C0135242
D0194822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6552761.159951%
B65523104.731380%
C6552420.641026%
D65535518.408363%

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 7667 6552 6 6 0.08% 0.09%
B 7667 6552 129 129 1.68% 1.97%
C 7667 6553 0 0 0.00% 0.00%
D 7667 6553 432 432 5.63% 6.59%

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 13 248 61423 365.76 822 806 165.7
A 8 15 26520 155.16 822 806 165.7
A 15 223 17482 100.62 822 806 165.7
B 4 239 909702 5831.11 810 793 155.9
B 0 85 166725 1064.54 810 793 155.9
B 4 81 116015 739.21 810 793 155.9
C 8 128 10996 55.13 795 801 184.9
C 8 112 6250 29.47 795 801 184.9
C 13 61 5956 27.88 795 801 184.9
D 2 16 1922106 10353.99 773 753 185.6
D 1 52 42256 223.66 773 753 185.6
D 13 249 41881 221.63 773 753 185.6

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