ASTROSAT CZTI

Data Quality Report

Orbit 13632

Creation date: 2024-06-27T16:43:42.656734
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_038T01_9000002018_13632cztM0_level2.evt modeM0/AS1G08_038T01_9000002018_13632cztM0_level2_quad_clean.evt
Size (bytes)481,420,80099,400,320
Size459.1 MB 94.8 MB
Events in quadrant A3,082,516610,944
Events in quadrant B3,318,743636,567
Events in quadrant C3,267,773675,595
Events in quadrant D4,468,779633,111

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013558112
B014142106
C013771116
D017830199

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01344
D01342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6517220.337579%
B6520330.506135%
C6515240.368381%
D6493731.124288%

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 7763 6568 4 4 0.05% 0.06%
B 7763 6562 1 1 0.01% 0.02%
C 7763 6560 5 5 0.06% 0.08%
D 7763 6559 32 32 0.41% 0.49%

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 1 162 23973 145.34 786 772 159.6
A 3 0 12655 74.44 786 772 159.6
A 1 178 8864 50.69 786 772 159.6
B 0 219 84853 565.83 795 776 148.6
B 0 229 62760 417.15 795 776 148.6
B 0 182 23527 153.11 795 776 148.6
C 3 233 186032 1035.21 783 793 178.9
C 14 234 20389 109.51 783 793 178.9
C 0 207 6995 34.66 783 793 178.9
D 13 122 982654 4951.09 760 748 198.3
D 8 195 443682 2233.42 760 748 198.3
D 5 222 87129 435.56 760 748 198.3

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