ASTROSAT CZTI

Data Quality Report

Orbit 23614

Creation date: 2024-06-27T18:56:49.704578
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/AS1T03_178T01_9000003488_23614cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23614cztM0_level2_quad_clean.evt
Size (bytes)654,624,00084,807,360
Size624.3 MB 80.9 MB
Events in quadrant A3,520,849537,685
Events in quadrant B8,494,290453,836
Events in quadrant C3,630,629530,780
Events in quadrant D3,670,365522,820

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153431
B0302391
C0155421
D0158861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7509941.251831%
B7509201226.794513%
C75101291.717710%
D7510690.918775%

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 7889 7509 0 0 0.00% 0.00%
B 7889 7509 1477 1477 18.72% 19.67%
C 7890 7510 0 0 0.00% 0.00%
D 7890 7510 6 6 0.08% 0.08%

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 13 254 11366 57.09 913 892 183.5
A 3 137 8726 42.7 913 892 183.5
A 0 226 7952 38.48 913 892 183.5
B 3 64 5111181 32924.27 797 775 155.2
B 0 229 237062 1522.3 797 775 155.2
B 12 111 19475 120.48 797 775 155.2
C 14 238 138175 659.14 882 884 208.3
C 10 9 17376 79.18 882 884 208.3
C 8 128 14123 63.56 882 884 208.3
D 1 52 110500 502.71 895 868 218.1
D 9 85 110071 500.75 895 868 218.1
D 2 234 30998 138.16 895 868 218.1

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