ASTROSAT CZTI

Data Quality Report

Orbit 08913

Creation date: 2024-06-27T15:38:54.332344
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/AS1A03_092T01_9000001240_08913cztM0_level2.evt modeM0/AS1A03_092T01_9000001240_08913cztM0_level2_quad_clean.evt
Size (bytes)469,123,20065,707,200
Size447.4 MB 62.7 MB
Events in quadrant A3,383,166387,748
Events in quadrant B4,221,736388,793
Events in quadrant C3,008,804386,168
Events in quadrant D3,154,733376,123

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140277
B0166172
C0132782
D0137814

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6456801.239157%
B64584116.364199%
C6458610.944565%
D6457821.269940%

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 7553 6458 16 16 0.21% 0.25%
B 7553 6458 280 280 3.71% 4.34%
C 7553 6458 0 0 0.00% 0.00%
D 7553 6458 22 22 0.29% 0.34%

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 8 5 253799 1578.45 788 769 160.3
A 15 174 41288 252.77 788 769 160.3
A 5 16 30881 187.84 788 769 160.3
B 10 16 1073097 7288.24 781 764 147.1
B 0 214 73304 493.03 781 764 147.1
B 4 173 19558 127.74 781 764 147.1
C 13 61 5943 29.0 771 774 178.3
C 12 4 2054 7.18 771 774 178.3
C 3 202 1921 6.43 771 774 178.3
D 1 52 90086 465.93 763 745 191.7
D 7 71 52450 269.65 763 745 191.7
D 2 14 45269 232.2 763 745 191.7

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