ASTROSAT CZTI

Data Quality Report

Orbit 45733

Creation date: 2024-06-27T23:15:32.164803
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/AS1T05_183T01_9000006124_45733cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45733cztM0_level2_quad_clean.evt
Size (bytes)539,547,840111,130,560
Size514.6 MB 106.0 MB
Events in quadrant A6,224,637742,616
Events in quadrant B4,417,162759,406
Events in quadrant C3,549,366750,722
Events in quadrant D5,274,972656,862

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224542
B0172652
C0148592
D0200382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65332834.331854%
B65343705.662687%
C65341642.509948%
D65334707.194245%

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 8693 6535 18 18 0.21% 0.28%
B 8694 6536 142 142 1.63% 2.17%
C 8694 6536 80 80 0.92% 1.22%
D 8693 6535 393 393 4.52% 6.01%

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 3058319 18667.08 787 770 163.8
A 13 248 60794 366.46 787 770 163.8
A 2 79 40508 242.61 787 770 163.8
B 5 172 410277 2710.32 779 756 151.1
B 3 112 272507 1798.52 779 756 151.1
B 5 255 185225 1220.86 779 756 151.1
C 14 254 169487 914.02 779 784 184.6
C 0 207 132373 712.94 779 784 184.6
C 2 14 116813 628.64 779 784 184.6
D 1 52 1462000 7633.18 762 738 191.4
D 2 249 229071 1192.74 762 738 191.4
D 13 249 173468 902.29 762 738 191.4

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