ASTROSAT CZTI

Data Quality Report

Orbit 12392

Creation date: 2024-06-27T16:26:36.091968
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_104T02_9000001838_12392cztM0_level2.evt modeM0/AS1A04_104T02_9000001838_12392cztM0_level2_quad_clean.evt
Size (bytes)550,327,680113,169,600
Size524.8 MB 107.9 MB
Events in quadrant A3,737,111772,772
Events in quadrant B5,425,391737,833
Events in quadrant C2,690,667765,081
Events in quadrant D4,389,160714,646

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152302
B0202471
C0126391
D0173721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62621692.698818%
B626290514.452252%
C6262120.191632%
D62622734.359630%

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 7178 6263 66 66 0.92% 1.05%
B 7178 6263 768 768 10.70% 12.26%
C 7178 6263 0 0 0.00% 0.00%
D 7178 6264 201 201 2.80% 3.21%

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 1 162 249564 1696.14 715 702 146.7
A 14 237 222607 1512.41 715 702 146.7
A 13 251 136465 925.31 715 702 146.7
B 2 32 1165265 9076.34 681 665 128.3
B 4 239 1130952 8808.92 681 665 128.3
B 2 48 340414 2647.84 681 665 128.3
C 13 61 5192 28.43 688 691 158.3
C 5 252 3842 19.91 688 691 158.3
C 6 96 2761 13.08 688 691 158.3
D 1 52 1170550 7272.35 677 657 160.9
D 7 71 204837 1269.24 677 657 160.9
D 10 199 144841 896.28 677 657 160.9

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