ASTROSAT CZTI

Data Quality Report

Orbit 06453

Creation date: 2024-06-27T15:07:25.172777
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/AS1A02_191T01_9000000854_06453cztM0_level2.evt modeM0/AS1A02_191T01_9000000854_06453cztM0_level2_quad_clean.evt
Size (bytes)594,792,00099,587,520
Size567.2 MB 95.0 MB
Events in quadrant A2,941,128661,516
Events in quadrant B3,021,461685,402
Events in quadrant C2,921,297660,398
Events in quadrant D8,695,018561,201

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131383
B0133222
C0132302
D0303502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6401190.296829%
B6401230.359319%
C640190.140603%
D6401185128.917357%

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 7621 6402 0 0 0.00% 0.00%
B 7621 6402 2 2 0.03% 0.03%
C 7621 6402 0 0 0.00% 0.00%
D 7621 6402 1605 1605 21.06% 25.07%

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 8 15 12666 78.54 755 740 151.8
A 15 236 9287 56.29 755 740 151.8
A 10 133 9234 55.94 755 740 151.8
B 4 81 22690 151.24 767 751 145.1
B 12 111 14853 97.21 767 751 145.1
B 11 111 11840 76.44 767 751 145.1
C 1 16 53099 308.33 734 736 169.8
C 13 61 5739 29.46 734 736 169.8
C 10 170 3066 13.72 734 736 169.8
D 2 63 6065778 38488.74 640 622 157.6
D 13 169 71059 446.98 640 622 157.6
D 8 195 31036 193.0 640 622 157.6

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