ASTROSAT CZTI

Data Quality Report

Orbit 05689

Creation date: 2024-06-27T14:57:59.810468
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/AS1G06_115T01_9000000734_05689cztM0_level2.evt modeM0/AS1G06_115T01_9000000734_05689cztM0_level2_quad_clean.evt
Size (bytes)446,261,76087,174,720
Size425.6 MB 83.1 MB
Events in quadrant A3,095,834550,608
Events in quadrant B3,467,683554,487
Events in quadrant C3,250,500553,832
Events in quadrant D3,267,126535,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133548
B0143708
C0137229
D0139204

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63801231.927900%
B63801662.601881%
C6380971.520376%
D63821422.225008%

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 7568 6382 4 4 0.05% 0.06%
B 7568 6384 13 13 0.17% 0.20%
C 7568 6384 0 0 0.00% 0.00%
D 7568 6384 20 20 0.26% 0.31%

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 50 16392 97.75 794 776 159.8
A 15 174 9326 53.52 794 776 159.8
A 12 194 7918 44.71 794 776 159.8
B 11 51 115652 763.23 796 778 150.5
B 4 81 114381 754.79 796 778 150.5
B 15 204 65930 432.88 796 778 150.5
C 1 16 257090 1473.28 765 768 174.0
C 13 61 6320 31.91 765 768 174.0
C 12 4 2819 11.79 765 768 174.0
D 2 152 148257 790.65 772 749 186.6
D 8 195 66623 353.09 772 749 186.6
D 2 136 59765 316.33 772 749 186.6

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