ASTROSAT CZTI

Data Quality Report

Orbit 46184

Creation date: 2024-06-27T23:20:06.012163
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_093T40_9000006182_46184cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46184cztM0_level2_quad_clean.evt
Size (bytes)475,758,720105,001,920
Size453.7 MB 100.1 MB
Events in quadrant A5,781,713712,126
Events in quadrant B3,274,762743,332
Events in quadrant C2,892,758698,222
Events in quadrant D5,192,333603,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211553
B0135311
C0128601
D0195381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60522724.494382%
B6052901.487112%
C6052320.528751%
D60525378.873100%

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 7277 6053 99 99 1.36% 1.64%
B 7277 6053 26 26 0.36% 0.43%
C 7277 6053 6 6 0.08% 0.10%
D 7277 6053 449 449 6.17% 7.42%

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 2856027 19889.96 698 684 143.6
A 9 191 201487 1398.77 698 684 143.6
A 13 248 15051 100.08 698 684 143.6
B 3 112 288479 2146.32 699 680 134.1
B 5 172 78830 582.82 699 680 134.1
B 15 201 53756 395.83 699 680 134.1
C 14 254 123872 782.8 674 678 157.4
C 12 2 96010 605.76 674 678 157.4
C 12 249 14850 90.05 674 678 157.4
D 1 52 882684 5370.08 658 638 164.3
D 2 249 601215 3656.43 658 638 164.3
D 5 222 575422 3499.4 658 638 164.3

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