ASTROSAT CZTI

Data Quality Report

Orbit 03693

Creation date: 2024-06-27T14:32:30.585113
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_009T01_9000000482_03693cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03693cztM0_level2_quad_clean.evt
Size (bytes)507,401,28086,944,320
Size483.9 MB 82.9 MB
Events in quadrant A3,606,509553,802
Events in quadrant B4,390,457548,748
Events in quadrant C3,650,359541,571
Events in quadrant D3,274,267531,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150692
B0176141
C0153581
D0144321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65531632.487410%
B65531362.075385%
C65533395.173203%
D6553961.464978%

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 7453 6554 61 61 0.82% 0.93%
B 7453 6554 59 59 0.79% 0.90%
C 7453 6553 233 233 3.13% 3.56%
D 7453 6554 57 57 0.76% 0.87%

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 13 251 229323 1430.47 774 756 159.8
A 0 118 178768 1114.08 774 756 159.8
A 13 164 130739 813.49 774 756 159.8
B 14 167 508607 3321.02 779 758 152.9
B 15 204 363732 2373.63 779 758 152.9
B 4 81 259992 1695.23 779 758 152.9
C 2 53 735607 4285.41 730 733 171.5
C 9 247 47605 273.33 730 733 171.5
C 0 239 7025 36.69 730 733 171.5
D 13 239 199630 1088.31 753 731 182.8
D 2 37 74542 403.87 753 731 182.8
D 5 233 54986 296.87 753 731 182.8

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