ASTROSAT CZTI

Data Quality Report

Orbit 28382

Creation date: 2024-06-27T19:51:11.136647
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/AS1A10_045T05_9000004086_28382cztM0_level2.evt modeM0/AS1A10_045T05_9000004086_28382cztM0_level2_quad_clean.evt
Size (bytes)548,979,84067,481,280
Size523.5 MB 64.4 MB
Events in quadrant A3,442,762400,117
Events in quadrant B3,990,923408,047
Events in quadrant C3,417,497392,303
Events in quadrant D5,325,165379,765

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145230
B0162900
C0143880
D0203200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6642721.084011%
B6642681.023788%
C66421021.535682%
D66411742.620087%

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 7727 6642 1 1 0.01% 0.02%
B 7727 6642 0 0 0.00% 0.00%
C 7727 6642 0 0 0.00% 0.00%
D 7726 6641 93 93 1.20% 1.40%

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 15 174 74893 423.15 870 853 175.0
A 13 254 10629 55.87 870 853 175.0
A 3 137 8251 42.28 870 853 175.0
B 10 245 539303 3301.18 861 839 163.1
B 0 230 75565 458.13 861 839 163.1
B 12 111 19900 116.86 861 839 163.1
C 14 238 135923 694.16 839 845 194.6
C 7 220 7792 35.7 839 845 194.6
C 13 61 5756 25.24 839 845 194.6
D 8 195 1735419 8574.13 846 825 202.3
D 1 52 187941 924.92 846 825 202.3
D 2 250 180402 887.65 846 825 202.3

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