ASTROSAT CZTI

Data Quality Report

Orbit 27243

Creation date: 2024-06-27T19:38:07.674858
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/AS1T03_243T01_9000003918_27243cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27243cztM0_level2_quad_clean.evt
Size (bytes)541,863,360100,840,320
Size516.8 MB 96.2 MB
Events in quadrant A3,444,577673,962
Events in quadrant B3,502,415685,210
Events in quadrant C3,389,124636,811
Events in quadrant D5,634,337605,474

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143030
B0144030
C0140120
D0212320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64851171.804163%
B64851221.881264%
C64851532.359291%
D64855348.234387%

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 7715 6486 4 4 0.05% 0.06%
B 7715 6486 2 2 0.03% 0.03%
C 7715 6486 0 0 0.00% 0.00%
D 7715 6486 448 448 5.81% 6.91%

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 15 174 15129 80.9 881 868 176.3
A 13 248 12680 67.0 881 868 176.3
A 8 192 11568 60.7 881 868 176.3
B 15 33 51827 312.07 871 851 163.3
B 12 111 19236 112.55 871 851 163.3
B 11 111 16938 98.48 871 851 163.3
C 14 238 133597 690.04 826 833 192.4
C 1 16 22475 112.48 826 833 192.4
C 15 208 8413 39.4 826 833 192.4
D 1 52 1955757 9296.79 818 803 210.3
D 15 0 276829 1312.64 818 803 210.3
D 7 38 141162 667.48 818 803 210.3

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