ASTROSAT CZTI

Data Quality Report

Orbit 24663

Creation date: 2024-06-27T19:08:30.323118
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/AS1T03_191T01_9000003618_24663cztM0_level2.evt modeM0/AS1T03_191T01_9000003618_24663cztM0_level2_quad_clean.evt
Size (bytes)444,769,920133,444,800
Size424.2 MB 127.3 MB
Events in quadrant A3,081,187924,592
Events in quadrant B3,125,765929,219
Events in quadrant C3,137,048886,569
Events in quadrant D3,717,413881,705

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129131
B0130101
C0130151
D0151071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6014320.532092%
B6014410.681743%
C6015931.546135%
D6015580.964256%

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 7249 6014 0 0 0.00% 0.00%
B 7249 6015 1 1 0.01% 0.02%
C 7250 6015 0 0 0.00% 0.00%
D 7250 6015 31 31 0.43% 0.52%

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 13 254 9355 54.83 798 785 156.3
A 0 226 6873 38.95 798 785 156.3
A 3 137 6615 37.3 798 785 156.3
B 0 230 22333 148.92 781 764 144.8
B 0 189 17601 116.25 781 764 144.8
B 12 111 16914 111.5 781 764 144.8
C 14 238 124043 715.67 756 764 172.3
C 10 91 56197 321.81 756 764 172.3
C 13 61 5193 25.71 756 764 172.3
D 8 195 504075 2722.3 776 756 184.9
D 1 52 150652 810.74 776 756 184.9
D 12 235 69273 370.59 776 756 184.9

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