ASTROSAT CZTI

Data Quality Report

Orbit 10984

Creation date: 2024-06-27T16:06:33.206896
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_027T06_9000001594_10984cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_10984cztM0_level2_quad_clean.evt
Size (bytes)493,574,40077,425,920
Size470.7 MB 73.8 MB
Events in quadrant A3,588,904489,384
Events in quadrant B4,005,150484,280
Events in quadrant C3,087,959482,642
Events in quadrant D3,845,358455,278

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145773
B0158652
C0131202
D0152432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62001071.725806%
B62002874.629032%
C6200400.645161%
D62001221.967742%

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 7480 6201 27 27 0.36% 0.44%
B 7480 6200 137 137 1.83% 2.21%
C 7480 6201 0 0 0.00% 0.00%
D 7480 6200 85 85 1.14% 1.37%

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 5 321903 1952.29 821 809 164.5
A 8 15 85479 514.8 821 809 164.5
A 14 238 10265 57.49 821 809 164.5
B 4 239 746659 4911.84 812 797 151.8
B 0 214 45343 293.36 812 797 151.8
B 3 189 22103 140.31 812 797 151.8
C 13 61 5874 28.09 791 798 180.7
C 1 3 3105 12.77 791 798 180.7
C 12 4 2023 6.78 791 798 180.7
D 1 52 453126 2407.19 786 766 187.9
D 8 195 182213 965.55 786 766 187.9
D 10 253 69628 366.44 786 766 187.9

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