ASTROSAT CZTI

Data Quality Report

Orbit 47523

Creation date: 2024-07-12T06:33:23.406393
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/AS1C09_002T01_9000006334_47523cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47523cztM0_level2_quad_clean.evt
Size (bytes)584,740,800134,251,200
Size557.7 MB 128.0 MB
Events in quadrant A8,364,782879,341
Events in quadrant B4,497,770910,503
Events in quadrant C3,644,816883,555
Events in quadrant D4,486,681807,984

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0302271
B0191681
C0172411
D0195151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83993704.405286%
B83991862.214549%
C8400590.702381%
D84001692.011905%

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 8654 8401 46 46 0.53% 0.55%
B 8654 8401 63 63 0.73% 0.75%
C 8655 8402 4 4 0.05% 0.05%
D 8655 8402 80 80 0.92% 0.95%

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 10 83 4445653 23251.19 925 902 191.2
A 13 248 146471 761.49 925 902 191.2
A 9 191 133138 691.75 925 902 191.2
B 5 32 453874 2479.48 930 901 182.7
B 0 200 180958 985.59 930 901 182.7
B 0 198 80156 433.83 930 901 182.7
C 12 2 29200 131.57 916 919 215.0
C 9 69 19119 84.67 916 919 215.0
C 0 207 14264 62.08 916 919 215.0
D 4 222 260059 1143.63 908 879 226.6
D 2 249 175870 772.15 908 879 226.6
D 7 38 161574 709.07 908 879 226.6

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