ASTROSAT CZTI

Data Quality Report

Orbit 30413

Creation date: 2024-06-27T20:14:55.431715
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/AS1C05_019T04_9000004376_30413cztM0_level2.evt modeM0/AS1C05_019T04_9000004376_30413cztM0_level2_quad_clean.evt
Size (bytes)551,966,400115,056,000
Size526.4 MB 109.7 MB
Events in quadrant A3,217,084767,398
Events in quadrant B5,178,643782,419
Events in quadrant C3,973,400769,345
Events in quadrant D3,927,658732,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135172
B0194324
C0160472
D0158682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200661.064516%
B61991332.145507%
C61991832.952089%
D61992614.210357%

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 7490 6201 13 13 0.17% 0.21%
B 7489 6200 33 33 0.44% 0.53%
C 7489 6199 9 9 0.12% 0.15%
D 7489 6200 188 188 2.51% 3.03%

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 0 13 140640 904.9 787 772 154.6
A 8 192 27537 173.16 787 772 154.6
A 13 254 12345 74.87 787 772 154.6
B 6 159 1852191 12815.28 789 769 144.5
B 0 229 81980 562.13 789 769 144.5
B 4 80 49778 339.23 789 769 144.5
C 3 233 723294 4051.08 780 788 178.3
C 14 238 128582 716.54 780 788 178.3
C 10 22 60151 332.85 780 788 178.3
D 13 249 563661 2927.53 758 746 192.3
D 8 195 190429 986.48 758 746 192.3
D 2 250 105576 545.19 758 746 192.3

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