ASTROSAT CZTI

Data Quality Report

Orbit 13619

Creation date: 2024-06-27T16:43:51.905940
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/AS1G08_044T01_9000002014_13619cztM0_level2.evt modeM0/AS1G08_044T01_9000002014_13619cztM0_level2_quad_clean.evt
Size (bytes)393,805,44058,806,720
Size375.6 MB 56.1 MB
Events in quadrant A2,412,851375,261
Events in quadrant B3,156,181367,633
Events in quadrant C2,437,504358,908
Events in quadrant D3,596,056344,217

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100661
B0124761
C0100651
D0139271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4767501.048878%
B47671863.901825%
C4767320.671282%
D47672344.908748%

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 6058 4769 0 0 0.00% 0.00%
B 6058 4769 29 29 0.48% 0.61%
C 6058 4769 0 0 0.00% 0.00%
D 6058 4769 148 148 2.44% 3.10%

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 1 162 18492 142.06 619 607 125.9
A 1 178 6618 47.74 619 607 125.9
A 1 161 6142 43.96 619 607 125.9
B 0 85 313953 2771.31 605 592 113.1
B 0 219 266547 2352.06 605 592 113.1
B 3 64 81789 718.09 605 592 113.1
C 3 233 123660 895.65 591 596 137.4
C 13 61 4370 27.47 591 596 137.4
C 12 4 3593 21.81 591 596 137.4
D 12 6 578620 4100.2 583 566 141.0
D 5 222 460610 3263.14 583 566 141.0
D 8 195 264072 1869.08 583 566 141.0

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