ASTROSAT CZTI

Data Quality Report

Orbit 14419

Creation date: 2024-06-27T16:54:54.387822
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/AS1A04_201T03_9000002128_14419cztM0_level2.evt modeM0/AS1A04_201T03_9000002128_14419cztM0_level2_quad_clean.evt
Size (bytes)544,000,32091,140,480
Size518.8 MB 86.9 MB
Events in quadrant A3,699,971569,837
Events in quadrant B3,960,333571,726
Events in quadrant C4,368,575559,581
Events in quadrant D3,943,626543,457

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156343
B0163772
C0174442
D0166402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73982783.757772%
B73983584.839146%
C73982343.163017%
D73982453.311706%

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 9164 7400 0 0 0.00% 0.00%
B 9164 7399 28 28 0.31% 0.38%
C 9164 7400 3 3 0.03% 0.04%
D 9164 7400 45 45 0.49% 0.61%

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 12 189 36854 187.14 943 920 192.0
A 8 15 19301 95.72 943 920 192.0
A 0 23 13336 64.66 943 920 192.0
B 0 229 95179 516.81 938 911 182.4
B 0 189 48732 262.17 938 911 182.4
B 0 85 48602 261.46 938 911 182.4
C 3 233 803284 3812.72 910 914 210.4
C 10 22 11687 51.19 910 914 210.4
C 13 61 6468 26.39 910 914 210.4
D 2 120 300920 1332.71 912 890 225.1
D 1 52 36672 158.94 912 890 225.1
D 5 51 34971 151.39 912 890 225.1

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