ASTROSAT CZTI

Data Quality Report

Orbit 47362

Creation date: 2024-07-01T11:15:50.485848
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/AS1A13_093T17_9000006322_47362cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47362cztM0_level2_quad_clean.evt
Size (bytes)568,224,000120,723,840
Size541.9 MB 115.1 MB
Events in quadrant A8,857,883757,851
Events in quadrant B4,188,651828,319
Events in quadrant C3,497,901809,056
Events in quadrant D3,903,779734,732

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0314402
B0179282
C0159242
D0170262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A755379310.499139%
B75532943.892493%
C7553761.006223%
D75541221.615038%

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 9063 7555 246 246 2.71% 3.26%
B 9063 7555 49 49 0.54% 0.65%
C 9063 7555 3 3 0.03% 0.04%
D 9064 7556 70 70 0.77% 0.93%

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 4063645 22808.27 852 833 178.1
A 9 191 774381 4342.63 852 833 178.1
A 15 235 680985 3818.31 852 833 178.1
B 0 186 354613 2013.56 877 851 175.7
B 5 255 229752 1302.87 877 851 175.7
B 14 167 26714 147.21 877 851 175.7
C 12 250 21353 97.89 876 877 209.2
C 1 3 21021 96.3 876 877 209.2
C 3 233 19733 90.15 876 877 209.2
D 2 249 249416 1118.22 870 842 222.3
D 12 128 176490 790.16 870 842 222.3
D 2 165 66850 296.94 870 842 222.3

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