ASTROSAT CZTI

Data Quality Report

Orbit 34103

Creation date: 2024-06-27T20:56:34.185018
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/AS1A05_208T01_9000004870_34103cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34103cztM0_level2_quad_clean.evt
Size (bytes)512,867,52082,281,600
Size489.1 MB 78.5 MB
Events in quadrant A2,613,644544,612
Events in quadrant B3,764,542550,852
Events in quadrant C4,141,459525,855
Events in quadrant D4,654,880500,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108313
B0146692
C0158662
D0174122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A528070.132576%
B52802905.492424%
C52803115.890152%
D52802354.450758%

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 7343 5281 0 0 0.00% 0.00%
B 7343 5281 184 184 2.51% 3.48%
C 7343 5281 269 269 3.66% 5.09%
D 7343 5281 159 159 2.17% 3.01%

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 20034 144.39 667 656 134.2
A 13 6 13568 96.21 667 656 134.2
A 13 254 9080 62.77 667 656 134.2
B 5 172 906150 7366.28 654 639 122.9
B 0 199 114074 922.79 654 639 122.9
B 0 230 50746 407.62 654 639 122.9
C 0 10 850606 5741.64 640 647 148.0
C 14 254 385120 2597.19 640 647 148.0
C 15 214 227566 1532.88 640 647 148.0
D 8 195 1152804 7376.99 639 622 156.2
D 2 250 484193 3096.12 639 622 156.2
D 13 249 212645 1357.5 639 622 156.2

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