ASTROSAT CZTI

Data Quality Report

Orbit 46299

Creation date: 2024-06-27T23:21:26.083952
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_072T02_9000006194_46299cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46299cztM0_level2_quad_clean.evt
Size (bytes)536,708,160109,540,800
Size511.8 MB 104.5 MB
Events in quadrant A6,170,021749,539
Events in quadrant B5,956,975691,034
Events in quadrant C3,210,893741,164
Events in quadrant D4,019,072676,835

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224984
B0222092
C0139742
D0163812

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65782904.408635%
B6578101315.399818%
C65781332.021891%
D65782143.253268%

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 7658 6579 3 3 0.04% 0.05%
B 7658 6579 690 690 9.01% 10.49%
C 7658 6579 32 32 0.42% 0.49%
D 7658 6579 98 98 1.28% 1.49%

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 2833825 17235.89 791 776 164.4
A 15 223 239306 1451.18 791 776 164.4
A 7 3 29860 176.94 791 776 164.4
B 4 171 2375505 16269.0 734 712 146.0
B 3 112 654298 4477.52 734 712 146.0
B 12 111 18887 124.51 734 712 146.0
C 12 249 119886 651.63 779 783 182.8
C 12 2 27840 148.03 779 783 182.8
C 1 3 17364 90.72 779 783 182.8
D 1 52 636271 3236.32 777 752 196.4
D 13 249 372882 1895.04 777 752 196.4
D 5 171 45628 228.53 777 752 196.4

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