ASTROSAT CZTI

Data Quality Report

Orbit 06150

Creation date: 2024-06-27T15:03:25.940587
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/AS1A02_199T01_9000000800_06150cztM0_level2.evt modeM0/AS1A02_199T01_9000000800_06150cztM0_level2_quad_clean.evt
Size (bytes)398,220,48095,253,120
Size379.8 MB 90.8 MB
Events in quadrant A2,811,720635,736
Events in quadrant B3,249,137636,110
Events in quadrant C2,651,041619,603
Events in quadrant D2,954,692588,944

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121922
B0134961
C0118541
D0127201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5789771.330109%
B57891011.744688%
C5789480.829159%
D57891432.470202%

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 7059 5789 13 13 0.18% 0.22%
B 7059 5790 38 38 0.54% 0.66%
C 7059 5790 0 0 0.00% 0.00%
D 7059 5790 79 79 1.12% 1.36%

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 8 15 123042 874.7 690 677 139.9
A 14 111 24719 171.86 690 677 139.9
A 0 31 7513 48.87 690 677 139.9
B 3 64 344326 2683.75 685 670 128.1
B 0 219 81770 633.34 685 670 128.1
B 0 214 76086 588.95 685 670 128.1
C 1 16 12121 74.22 673 675 154.2
C 4 222 7528 44.44 673 675 154.2
C 13 61 5363 30.4 673 675 154.2
D 13 169 306953 1880.87 671 650 162.9
D 5 97 35964 216.85 671 650 162.9
D 8 195 25774 154.28 671 650 162.9

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