ASTROSAT CZTI

Data Quality Report

Orbit 47201

Creation date: 2024-06-27T23:32:47.838589
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_019T01_9000006302_47201cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47201cztM0_level2_quad_clean.evt
Size (bytes)541,483,200107,763,840
Size516.4 MB 102.8 MB
Events in quadrant A7,931,055691,285
Events in quadrant B5,366,476718,720
Events in quadrant C3,086,925731,916
Events in quadrant D3,153,452665,610

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282255
B0202931
C0136821
D0138621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A652669010.573092%
B652667010.266626%
C6527941.440172%
D65271221.869159%

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 7582 6526 364 364 4.80% 5.58%
B 7582 6526 323 323 4.26% 4.95%
C 7583 6527 9 9 0.12% 0.14%
D 7583 6527 8 8 0.11% 0.12%

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 3508114 22191.37 757 741 158.1
A 9 191 1489541 9419.73 757 741 158.1
A 13 254 11655 69.05 757 741 158.1
B 0 190 1784878 11758.4 765 744 151.7
B 15 201 170084 1116.04 765 744 151.7
B 0 200 161967 1062.55 765 744 151.7
C 14 254 84358 460.94 767 771 181.3
C 14 67 8370 41.9 767 771 181.3
C 13 61 5253 24.72 767 771 181.3
D 12 218 61869 317.3 767 742 192.6
D 2 249 33126 168.1 767 742 192.6
D 2 234 26666 134.57 767 742 192.6

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