ASTROSAT CZTI

Data Quality Report

Orbit 03590

Creation date: 2024-06-27T14:31:22.000123
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_246T03_9000000470_03590cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03590cztM0_level2_quad_clean.evt
Size (bytes)456,511,68093,159,360
Size435.4 MB 88.8 MB
Events in quadrant A3,293,997597,381
Events in quadrant B3,702,825599,844
Events in quadrant C3,127,816598,634
Events in quadrant D3,264,792577,848

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141443
B0153572
C0134862
D0141832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64161432.228803%
B64161552.415835%
C64161171.823566%
D64161702.649626%

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 7630 6416 4 4 0.05% 0.06%
B 7630 6416 18 18 0.24% 0.28%
C 7630 6416 4 4 0.05% 0.06%
D 7630 6416 62 62 0.81% 0.97%

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 15 174924 1085.8 792 774 160.4
A 15 234 19747 118.29 792 774 160.4
A 0 50 18808 112.44 792 774 160.4
B 15 204 346582 2242.9 796 777 154.2
B 4 81 149119 962.15 796 777 154.2
B 0 228 72292 463.85 796 777 154.2
C 1 16 30874 166.66 779 783 180.6
C 2 53 27321 146.98 779 783 180.6
C 14 48 10993 56.55 779 783 180.6
D 14 34 225463 1217.82 774 750 184.5
D 13 223 68720 368.36 774 750 184.5
D 2 14 14314 73.51 774 750 184.5

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
Veto Counter