ASTROSAT CZTI

Data Quality Report

Orbit 24012

Creation date: 2024-06-27T19:01:07.446127
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/AS1A07_165T01_9000003558_24012cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24012cztM0_level2_quad_clean.evt
Size (bytes)558,547,200141,511,680
Size532.7 MB 135.0 MB
Events in quadrant A3,340,140993,285
Events in quadrant B3,439,0111,008,129
Events in quadrant C3,398,436964,404
Events in quadrant D6,312,339881,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139232
B0141692
C0141682
D0231502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6281480.764210%
B6281610.971183%
C62811031.639866%
D628199815.889190%

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 7531 6282 1 1 0.01% 0.02%
B 7531 6282 9 9 0.12% 0.14%
C 7531 6282 0 0 0.00% 0.00%
D 7531 6282 759 759 10.08% 12.08%

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 6 16 22416 126.39 860 846 170.7
A 13 254 9744 52.14 860 846 170.7
A 0 226 7449 38.69 860 846 170.7
B 5 172 57148 364.42 846 829 154.5
B 7 202 21303 132.48 846 829 154.5
B 0 190 19096 118.2 846 829 154.5
C 14 238 133801 710.67 821 829 187.1
C 7 247 50485 265.39 821 829 187.1
C 0 239 7602 36.2 821 829 187.1
D 12 218 2703252 14134.86 798 777 191.2
D 8 195 202161 1053.31 798 777 191.2
D 12 250 161169 838.9 798 777 191.2

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