ASTROSAT CZTI

Data Quality Report

Orbit 20569

Creation date: 2024-06-27T18:16:56.961054
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_088T03_9000003042_20569cztM0_level2.evt modeM0/AS1A05_088T03_9000003042_20569cztM0_level2_quad_clean.evt
Size (bytes)468,748,80094,412,160
Size447.0 MB 90.0 MB
Events in quadrant A3,124,235619,297
Events in quadrant B3,314,431623,336
Events in quadrant C3,185,871606,236
Events in quadrant D4,153,698580,471

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131382
B0137172
C0132052
D0164822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6161350.568090%
B6161580.941406%
C6161681.103717%
D61611622.629443%

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 7516 6162 0 0 0.00% 0.00%
B 7516 6162 11 11 0.15% 0.18%
C 7516 6162 0 0 0.00% 0.00%
D 7516 6162 111 111 1.48% 1.80%

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 6 16 23634 142.05 806 792 160.8
A 0 226 7177 39.71 806 792 160.8
A 3 137 6161 33.39 806 792 160.8
B 7 220 66341 441.33 802 784 148.5
B 0 197 47642 315.45 802 784 148.5
B 12 111 17134 110.07 802 784 148.5
C 14 238 122597 668.29 783 790 182.3
C 9 54 7103 34.64 783 790 182.3
C 13 61 5413 25.36 783 790 182.3
D 5 222 374869 2008.58 781 761 186.3
D 1 52 274683 1470.68 781 761 186.3
D 2 165 232948 1246.61 781 761 186.3

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