ASTROSAT CZTI

Data Quality Report

Orbit 10161

Creation date: 2024-06-27T15:55:47.682911
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_039T01_9000001462_10161cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10161cztM0_level2_quad_clean.evt
Size (bytes)471,430,080109,362,240
Size449.6 MB 104.3 MB
Events in quadrant A3,172,456729,338
Events in quadrant B3,429,117734,521
Events in quadrant C2,986,694722,098
Events in quadrant D4,259,485684,786

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135541
B0144440
C0131160
D0169190

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6328961.517067%
B63281031.627686%
C6328510.805942%
D63281652.607459%

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 7598 6328 4 4 0.05% 0.06%
B 7598 6329 8 8 0.11% 0.13%
C 7598 6329 1 1 0.01% 0.02%
D 7598 6329 64 64 0.84% 1.01%

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 15 223 32685 198.16 800 786 161.0
A 8 15 19453 115.96 800 786 161.0
A 15 239 13530 79.17 800 786 161.0
B 4 239 128487 860.75 793 775 148.4
B 0 219 74830 499.11 793 775 148.4
B 0 214 59568 396.25 793 775 148.4
C 1 3 11677 62.95 760 765 173.3
C 14 67 6840 35.05 760 765 173.3
C 13 61 5654 28.2 760 765 173.3
D 8 195 531802 2916.31 763 741 182.1
D 1 52 234977 1286.3 763 741 182.1
D 2 16 172167 941.38 763 741 182.1

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