ASTROSAT CZTI

Data Quality Report

Orbit 47348

Creation date: 2024-06-30T12:11:11.091138
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_093T09_9000006320_47348cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47348cztM0_level2_quad_clean.evt
Size (bytes)359,121,60078,963,840
Size342.5 MB 75.3 MB
Events in quadrant A5,250,798505,209
Events in quadrant B2,596,025537,377
Events in quadrant C2,214,376524,721
Events in quadrant D2,840,135469,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194531
B0111741
C0103651
D0122361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50412274.503075%
B50411062.102757%
C5041340.674469%
D50411743.451696%

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 5851 5042 14 14 0.24% 0.28%
B 5851 5042 11 11 0.19% 0.22%
C 5851 5042 0 0 0.00% 0.00%
D 5851 5042 139 139 2.38% 2.76%

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 2766519 23956.05 551 540 115.5
A 9 191 191327 1652.4 551 540 115.5
A 15 235 149605 1291.05 551 540 115.5
B 0 186 114507 1017.94 558 540 112.0
B 0 190 93150 827.18 558 540 112.0
B 5 255 42939 378.7 558 540 112.0
C 3 233 57236 428.52 553 554 132.3
C 13 61 3762 24.25 553 554 132.3
C 6 247 1580 7.76 553 554 132.3
D 12 2 396375 2847.68 545 527 139.0
D 7 38 204955 1470.63 545 527 139.0
D 12 128 60354 430.39 545 527 139.0

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