ASTROSAT CZTI

Data Quality Report

Orbit 20231215_A13_072T03_9000006000_level2

Creation date: 2024-01-01T13:51:41.626283
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/AS1A13_072T03_9000006000cztM0_level2.fits modeM0/AS1A13_072T03_9000006000cztM0_level2_quad_clean.evt
Size (bytes)2,072,635,2002,083,487,040
Size1.9 GB 1.9 GB
Events in quadrant A12,335,39112,411,218
Events in quadrant B11,885,11612,414,993
Events in quadrant C12,266,31411,964,244
Events in quadrant D10,249,74610,292,342

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047570
B047510
C047780
D047720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03240
B03240
C03250
D03240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06748990
B05349910
C05403500
D06761240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23362848062.057116%
B23405590253.855931%
C23395762182.657753%
D233574179347.678081%

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 474582 234864 0 0 0.00% 0.00%
B 474581 235210 0 0 0.00% 0.00%
C 474581 235220 0 0 0.00% 0.00%
D 474581 234647 0 0 0.00% 0.00%

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 7 110 10244 8.99 3213 2996 806.6
A 0 29 9705 8.32 3213 2996 806.6
A 7 109 9501 8.06 3213 2996 806.6
B 2 9 11044 13.12 3138 2976 615.1
B 2 8 8813 9.49 3138 2976 615.1
B 3 17 8644 9.21 3138 2976 615.1
C 1 81 9465 7.84 3245 3010 823.5
C 3 202 9353 7.7 3245 3010 823.5
C 1 80 9226 7.55 3245 3010 823.5
D 10 189 7518 5.92 2946 2665 819.3
D 7 3 7438 5.82 2946 2665 819.3
D 4 16 7387 5.76 2946 2665 819.3

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