ASTROSAT CZTI

Data Quality Report

Orbit 03527

Creation date: 2024-06-27T14:30:32.968915
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/AS1G05_045T01_9000000468_03527cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03527cztM0_level2_quad_clean.evt
Size (bytes)525,467,52077,929,920
Size501.1 MB 74.3 MB
Events in quadrant A3,790,972477,349
Events in quadrant B3,921,851479,165
Events in quadrant C3,804,088469,383
Events in quadrant D3,933,968458,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158763
B0158522
C0161742
D0167142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68233054.470174%
B68221231.802990%
C68221852.711815%
D68221281.876283%

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 7834 6825 203 203 2.59% 2.97%
B 7834 6824 14 14 0.18% 0.21%
C 7834 6824 105 105 1.34% 1.54%
D 7834 6824 67 67 0.86% 0.98%

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 0 149 344388 2155.07 779 761 159.5
A 0 50 310245 1940.94 779 761 159.5
A 8 15 81848 508.54 779 761 159.5
B 3 0 286211 1850.9 795 776 154.2
B 15 204 261171 1688.53 795 776 154.2
B 15 85 132197 852.2 795 776 154.2
C 4 248 777564 4385.18 760 763 177.1
C 1 16 15906 85.48 760 763 177.1
C 12 4 13725 73.17 760 763 177.1
D 1 20 740701 4022.2 761 738 184.0
D 13 25 219158 1187.26 761 738 184.0
D 5 233 37995 202.52 761 738 184.0

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