ASTROSAT CZTI

Data Quality Report

Orbit 05964

Creation date: 2024-06-27T15:01:16.441865
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/AS1G06_086T01_9000000774_05964cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05964cztM0_level2_quad_clean.evt
Size (bytes)459,256,320123,053,760
Size438.0 MB 117.4 MB
Events in quadrant A3,125,907821,868
Events in quadrant B3,216,259847,638
Events in quadrant C3,753,970815,780
Events in quadrant D3,356,035773,628

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140873
B0142652
C0158902
D0151922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6708701.043530%
B6708791.177698%
C67081341.997615%
D67082453.652355%

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 9243 6711 6 6 0.06% 0.09%
B 9243 6711 15 15 0.16% 0.22%
C 9243 6711 92 92 1.00% 1.37%
D 9243 6711 204 204 2.21% 3.04%

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 15 234 120535 778.14 762 746 153.9
A 13 251 61020 391.53 762 746 153.9
A 8 192 12253 74.75 762 746 153.9
B 0 229 122883 829.07 777 757 147.3
B 0 219 47616 318.11 777 757 147.3
B 4 81 18570 120.93 777 757 147.3
C 9 247 829212 4868.9 741 745 170.2
C 1 16 11328 62.19 741 745 170.2
C 9 68 6980 36.64 741 745 170.2
D 2 206 522563 2928.01 728 704 178.2
D 2 14 30053 164.67 728 704 178.2
D 8 195 23710 129.08 728 704 178.2

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