ASTROSAT CZTI

Data Quality Report

Orbit 20231122_A13_012T01_9000005942_level2

Creation date: 2023-11-28T10:18:44.018302
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_012T01_9000005942cztM0_level2.fits modeM0/AS1A13_012T01_9000005942cztM0_level2_quad_clean.evt
Size (bytes)394,416,000414,815,040
Size376.1 MB 395.6 MB
Events in quadrant A2,238,8122,374,230
Events in quadrant B2,303,8622,565,437
Events in quadrant C2,361,7862,409,785
Events in quadrant D1,960,0662,136,573

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01295970
B0925050
C0942680
D01359410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09080
B09080
C09080
D09080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4481237538.374989%
B448118982.003972%
C448087301.629173%
D4480436888.231408%

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 51779 44519 0 0 0.00% 0.00%
B 51780 44812 0 0 0.00% 0.00%
C 51780 44811 0 0 0.00% 0.00%
D 51780 44758 0 0 0.00% 0.00%

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 7 110 1830 8.69 582 543 148.1
A 15 236 1799 8.48 582 543 148.1
A 0 29 1767 8.27 582 543 148.1
B 2 9 2082 12.13 606 574 124.4
B 3 17 1652 8.67 606 574 124.4
B 2 8 1637 8.55 606 574 124.4
C 1 81 1791 7.44 624 576 163.4
C 1 80 1777 7.35 624 576 163.4
C 3 202 1774 7.33 624 576 163.4
D 3 14 1470 6.15 561 509 156.3
D 10 189 1392 5.65 561 509 156.3
D 15 46 1386 5.61 561 509 156.3

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