ASTROSAT CZTI

Data Quality Report

Orbit 48486

Creation date: 2024-09-15T06:03:56.941419
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_081T01_9000006428_48486cztM0_level2.fits modeM0/AS1A13_081T01_9000006428_48486cztM0_level2_quad_clean.evt
Size (bytes)458,458,560106,813,440
Size437.2 MB 101.9 MB
Events in quadrant A7,157,081689,582
Events in quadrant B3,243,244728,698
Events in quadrant C2,847,960699,181
Events in quadrant D3,193,440641,695

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256962
B0148142
C0138842
D0148482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68093084.523425%
B68101271.864905%
C6810340.499266%
D6810610.895742%

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 8559 6809 146 146 1.71% 2.14%
B 8560 6810 54 54 0.63% 0.79%
C 8560 6811 2 2 0.02% 0.03%
D 8560 6812 63 63 0.74% 0.92%

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 4222787 28388.38 709 693 148.7
A 12 189 175225 1173.51 709 693 148.7
A 13 254 13037 83.0 709 693 148.7
B 0 186 226777 1590.0 716 694 142.2
B 5 255 65937 458.84 716 694 142.2
B 5 171 31382 215.82 716 694 142.2
C 1 3 31184 182.39 710 714 167.1
C 3 233 30463 178.08 710 714 167.1
C 14 254 11034 61.78 710 714 167.1
D 10 199 151404 849.08 705 681 177.5
D 5 171 86581 483.91 705 681 177.5
D 2 120 67703 377.56 705 681 177.5

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