ASTROSAT CZTI

Data Quality Report

Orbit 28170

Creation date: 2024-06-27T19:48:48.566377
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/AS1A10_073T05_9000004068_28170cztM0_level2.evt modeM0/AS1A10_073T05_9000004068_28170cztM0_level2_quad_clean.evt
Size (bytes)510,995,52086,791,680
Size487.3 MB 82.8 MB
Events in quadrant A2,944,109576,605
Events in quadrant B3,189,289572,751
Events in quadrant C3,003,994545,945
Events in quadrant D5,926,918509,328

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123620
B0131600
C0125900
D0217200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6061570.940439%
B60621131.864071%
C6062831.369185%
D606174512.291701%

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 7156 6062 0 0 0.00% 0.00%
B 7157 6063 42 42 0.59% 0.69%
C 7157 6063 9 9 0.13% 0.15%
D 7156 6061 645 645 9.01% 10.64%

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 13 254 9288 56.49 762 748 151.2
A 3 137 7168 42.46 762 748 151.2
A 0 226 6482 37.93 762 748 151.2
B 10 245 218612 1534.12 743 723 142.0
B 10 246 32473 223.55 743 723 142.0
B 12 111 17074 115.12 743 723 142.0
C 14 238 117564 707.61 711 715 165.1
C 3 233 110035 662.01 711 715 165.1
C 13 61 4860 25.1 711 715 165.1
D 1 52 1868857 11342.37 698 680 164.7
D 5 222 798272 4842.47 698 680 164.7
D 8 195 242324 1467.11 698 680 164.7

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