ASTROSAT CZTI

Data Quality Report

Orbit 16052

Creation date: 2024-06-27T17:17:18.123019
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/AS1G08_012T01_9000002370_16052cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16052cztM0_level2_quad_clean.evt
Size (bytes)475,634,88086,647,680
Size453.6 MB 82.6 MB
Events in quadrant A3,498,271554,788
Events in quadrant B3,307,891566,473
Events in quadrant C3,818,013540,420
Events in quadrant D3,370,746540,653

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145993
B0137442
C0152882
D0139842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6040510.844371%
B6040470.778146%
C60402424.006623%
D6040570.943709%

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 7421 6042 1 1 0.01% 0.02%
B 7421 6041 2 2 0.03% 0.03%
C 7421 6041 110 110 1.48% 1.82%
D 7421 6042 31 31 0.42% 0.51%

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 3 80 280012 1679.76 829 814 166.2
A 15 222 16737 95.8 829 814 166.2
A 0 226 7255 38.75 829 814 166.2
B 0 230 19638 121.37 830 812 155.1
B 12 111 17517 107.7 830 812 155.1
B 11 111 15317 93.51 830 812 155.1
C 9 236 444407 2403.96 801 809 184.5
C 14 238 125710 676.87 801 809 184.5
C 3 233 90484 485.97 801 809 184.5
D 12 218 186226 934.53 819 796 198.4
D 2 152 53831 267.28 819 796 198.4
D 4 239 20646 100.04 819 796 198.4

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