ASTROSAT CZTI

Data Quality Report

Orbit 06083

Creation date: 2024-06-27T15:02:31.670746
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/AS1A02_028T03_9000000788_06083cztM0_level2.evt modeM0/AS1A02_028T03_9000000788_06083cztM0_level2_quad_clean.evt
Size (bytes)488,016,00089,328,960
Size465.4 MB 85.2 MB
Events in quadrant A3,543,586560,766
Events in quadrant B3,971,904546,751
Events in quadrant C3,272,051563,324
Events in quadrant D3,504,364535,081

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176582268
B0195622778
C0170552114
D0180312376

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061
B062
C061
D061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016820
B016826
C016731
D016727

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7193951.320728%
B71382954.132810%
C7209380.527119%
D7125650.912281%

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 8904 7680 13 13 0.15% 0.17%
B 8904 7663 109 109 1.22% 1.42%
C 8904 7718 0 0 0.00% 0.00%
D 8904 7656 33 33 0.37% 0.43%

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 31 214520 1246.48 834 814 171.4
A 8 15 53656 308.21 834 814 171.4
A 4 2 40892 233.76 834 814 171.4
B 3 64 649930 4015.48 827 805 161.7
B 0 219 35554 214.96 827 805 161.7
B 0 214 22340 133.22 827 805 161.7
C 9 54 29709 150.28 823 826 192.2
C 1 16 19092 95.04 823 826 192.2
C 8 128 7138 32.84 823 826 192.2
D 5 239 145663 731.62 807 780 198.0
D 5 190 112941 566.38 807 780 198.0
D 13 169 55097 274.29 807 780 198.0

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