ASTROSAT CZTI

Data Quality Report

Orbit 03025

Creation date: 2024-06-27T14:23:35.852161
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_238T02_9000000420_03025cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03025cztM0_level2_quad_clean.evt
Size (bytes)369,783,36067,674,240
Size352.7 MB 64.5 MB
Events in quadrant A2,542,450430,923
Events in quadrant B2,880,598428,990
Events in quadrant C2,457,215417,535
Events in quadrant D2,963,641406,242

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106343
B0117282
C0108052
D0122342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A521840.076658%
B5218280.536604%
C5218160.306631%
D5218280.536604%

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 7374 5219 0 0 0.00% 0.00%
B 7374 5219 27 27 0.37% 0.52%
C 7374 5219 11 11 0.15% 0.21%
D 7374 5219 26 26 0.35% 0.50%

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 8 15 119541 950.93 619 608 125.1
A 13 14 13160 100.36 619 608 125.1
A 0 50 11092 83.82 619 608 125.1
B 15 204 157406 1332.16 621 610 117.7
B 14 167 105029 887.16 621 610 117.7
B 0 219 92582 781.4 621 610 117.7
C 6 80 66923 482.3 591 595 137.5
C 1 192 34436 246.07 591 595 137.5
C 0 219 15806 110.6 591 595 137.5
D 13 114 507571 3634.69 592 580 139.5
D 7 80 58958 418.52 592 580 139.5
D 14 113 36600 258.23 592 580 139.5

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