ASTROSAT CZTI

Data Quality Report

Orbit 05342

Creation date: 2024-06-27T14:54:07.013524
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_152T01_9000000676_05342cztM0_level2.evt modeM0/AS1G05_152T01_9000000676_05342cztM0_level2_quad_clean.evt
Size (bytes)682,810,56090,092,160
Size651.2 MB 85.9 MB
Events in quadrant A3,024,172591,101
Events in quadrant B3,314,884604,799
Events in quadrant C5,249,209587,093
Events in quadrant D8,641,030480,842

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138543
B0144252
C0204332
D0303902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6648210.315884%
B6648691.037906%
C6648961.444043%
D6648188128.294224%

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 7873 6650 9 9 0.11% 0.14%
B 7873 6650 27 27 0.34% 0.41%
C 7873 6650 2 2 0.03% 0.03%
D 7873 6650 1808 1808 22.96% 27.19%

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 131029 858.15 748 731 151.8
A 13 251 10042 61.32 748 731 151.8
A 12 194 7344 43.55 748 731 151.8
B 4 80 123612 860.15 767 748 142.8
B 10 16 95799 665.43 767 748 142.8
B 4 48 60459 418.03 767 748 142.8
C 1 16 2343433 13765.58 742 746 170.2
C 14 67 7702 40.87 742 746 170.2
C 13 61 6057 31.21 742 746 170.2
D 2 63 5506452 34794.6 645 626 158.2
D 13 61 107363 674.53 645 626 158.2
D 2 33 100677 632.28 645 626 158.2

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