ASTROSAT CZTI

Data Quality Report

Orbit 33465

Creation date: 2024-06-27T20:49:07.068182
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/AS1A11_047T10_9000004802_33465cztM0_level2.evt modeM0/AS1A11_047T10_9000004802_33465cztM0_level2_quad_clean.evt
Size (bytes)467,190,72081,993,600
Size445.5 MB 78.2 MB
Events in quadrant A2,418,531545,306
Events in quadrant B3,710,745546,037
Events in quadrant C3,011,730536,896
Events in quadrant D4,659,193494,356

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104383
B0143422
C0120072
D0174722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A513880.155703%
B51383015.858311%
C51381312.549630%
D51381593.094589%

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 7081 5139 2 2 0.03% 0.04%
B 7081 5139 238 238 3.36% 4.63%
C 7081 5139 106 106 1.50% 2.06%
D 7081 5139 144 144 2.03% 2.80%

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 15 169 16137 126.5 616 605 122.8
A 7 192 14071 109.67 616 605 122.8
A 13 254 10406 79.82 616 605 122.8
B 5 172 679342 5916.66 606 592 114.7
B 5 255 264933 2304.26 606 592 114.7
B 4 170 202678 1761.58 606 592 114.7
C 14 254 268350 1989.73 590 594 134.6
C 15 214 223004 1652.76 590 594 134.6
C 0 10 146071 1081.06 590 594 134.6
D 8 195 1641384 11528.76 583 567 142.3
D 2 250 489000 3431.84 583 567 142.3
D 12 6 83135 580.14 583 567 142.3

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