ASTROSAT CZTI

Data Quality Report

Orbit 11024

Creation date: 2024-06-27T16:07:12.267363
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_046T09_9000001600_11024cztM0_level2.evt modeM0/AS1G08_046T09_9000001600_11024cztM0_level2_quad_clean.evt
Size (bytes)573,514,56068,437,440
Size546.9 MB 65.3 MB
Events in quadrant A4,694,161398,185
Events in quadrant B4,934,338409,555
Events in quadrant C3,016,085407,801
Events in quadrant D4,272,772391,817

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184963
B0191222
C0135932
D0171572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66694486.717649%
B66694576.852602%
C6669180.269906%
D66692273.403809%

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 7674 6669 349 349 4.55% 5.23%
B 7674 6670 297 297 3.87% 4.45%
C 7674 6670 0 0 0.00% 0.00%
D 7674 6670 151 151 1.97% 2.26%

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 5 1407615 8909.07 772 757 157.9
A 15 174 259760 1640.16 772 757 157.9
A 14 238 25677 157.81 772 757 157.9
B 4 239 1558694 10496.76 776 758 148.4
B 10 244 242141 1626.34 776 758 148.4
B 0 214 39960 264.13 776 758 148.4
C 13 61 5646 27.18 772 776 179.2
C 14 238 3490 15.15 772 776 179.2
C 12 4 2633 10.36 772 776 179.2
D 1 52 725718 3916.77 761 740 185.1
D 11 129 386641 2084.87 761 740 185.1
D 8 195 118099 634.04 761 740 185.1

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