ASTROSAT CZTI

Data Quality Report

Orbit 03097

Creation date: 2024-06-27T14:24:36.070869
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_237T03_9000000426_03097cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03097cztM0_level2_quad_clean.evt
Size (bytes)420,442,56068,149,440
Size401.0 MB 65.0 MB
Events in quadrant A3,075,619426,846
Events in quadrant B3,030,639428,026
Events in quadrant C2,859,849423,535
Events in quadrant D3,395,732402,933

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124713
B0124582
C0118802
D0138712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54571833.353491%
B5457681.246106%
C5457380.696353%
D54571442.638813%

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 6747 5459 142 142 2.10% 2.60%
B 6747 5459 22 22 0.33% 0.40%
C 6747 5459 12 12 0.18% 0.22%
D 6747 5459 101 101 1.50% 1.85%

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 14 249 451820 3403.46 657 645 132.6
A 8 15 66167 494.27 657 645 132.6
A 12 194 7297 50.18 657 645 132.6
B 15 204 134689 1053.01 664 652 127.3
B 0 219 95705 746.75 664 652 127.3
B 10 244 51058 396.0 664 652 127.3
C 1 192 204391 1394.2 630 635 146.1
C 6 80 67849 459.91 630 635 146.1
C 14 223 39828 268.18 630 635 146.1
D 1 7 669185 4377.67 629 612 152.7
D 2 136 91240 593.41 629 612 152.7
D 9 85 76070 494.08 629 612 152.7

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