ASTROSAT CZTI

Data Quality Report

Orbit 14052

Creation date: 2024-06-27T16:49:41.562689
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/AS1A04_162T01_9000002074_14052cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14052cztM0_level2_quad_clean.evt
Size (bytes)510,684,480139,605,120
Size487.0 MB 133.1 MB
Events in quadrant A3,462,736959,203
Events in quadrant B3,814,784967,076
Events in quadrant C3,382,643938,492
Events in quadrant D4,355,249900,620

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146283
B0156592
C0146602
D0174072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6645831.249059%
B66451752.633559%
C6645610.917983%
D66451522.287434%

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 7826 6647 0 0 0.00% 0.00%
B 7826 6647 56 56 0.72% 0.84%
C 7826 6647 1 1 0.01% 0.02%
D 7826 6647 71 71 0.91% 1.07%

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 12 189 119541 693.55 855 839 171.2
A 8 15 33110 188.55 855 839 171.2
A 2 79 17407 96.8 855 839 171.2
B 0 189 174468 1117.8 844 825 155.3
B 0 228 171503 1098.71 844 825 155.3
B 3 209 58991 374.44 844 825 155.3
C 3 233 182732 982.97 816 821 185.1
C 0 207 18166 93.72 816 821 185.1
C 13 61 6003 28.0 816 821 185.1
D 1 52 514650 2397.92 811 794 214.3
D 10 172 250149 1163.62 811 794 214.3
D 8 195 182354 847.25 811 794 214.3

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