ASTROSAT CZTI

Data Quality Report

Orbit 17358

Creation date: 2024-06-27T17:35:27.446170
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/AS1A05_165T12_9000002562_17358cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17358cztM0_level2_quad_clean.evt
Size (bytes)593,536,320104,382,720
Size566.0 MB 99.5 MB
Events in quadrant A3,796,167670,008
Events in quadrant B3,895,122680,501
Events in quadrant C3,835,208640,344
Events in quadrant D5,901,177608,871

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166922
B0168482
C0166563
D0230172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8074490.606886%
B8075690.854489%
C8074750.928908%
D80743744.632153%

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 9564 8076 0 0 0.00% 0.00%
B 9565 8077 2 2 0.02% 0.02%
C 9564 8076 0 0 0.00% 0.00%
D 9564 8076 297 297 3.11% 3.68%

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 0 226 8569 38.44 986 967 197.8
A 3 137 7436 32.71 986 967 197.8
A 12 194 7118 31.1 986 967 197.8
B 12 111 22383 113.73 987 962 188.3
B 11 111 19369 97.73 987 962 188.3
B 14 111 16327 81.58 987 962 188.3
C 14 238 144570 653.77 941 946 219.7
C 3 233 17937 77.34 941 946 219.7
C 13 61 6578 25.64 941 946 219.7
D 5 222 687014 3038.21 931 904 225.8
D 13 189 515140 2277.12 931 904 225.8
D 13 232 422951 1868.89 931 904 225.8

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