ASTROSAT CZTI

Data Quality Report

Orbit 05776

Creation date: 2024-06-27T14:59:00.370673
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/AS1G06_002T01_9000000742_05776cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05776cztM0_level2_quad_clean.evt
Size (bytes)420,520,32060,289,920
Size401.0 MB 57.5 MB
Events in quadrant A3,054,150346,535
Events in quadrant B3,190,178350,726
Events in quadrant C3,052,436352,374
Events in quadrant D3,014,786340,918

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01299242
B01320831
C01304642
D01309157

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01264

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62341121.796599%
B62391342.147780%
C62341101.764517%
D6230991.589085%

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 7484 6252 0 0 0.00% 0.00%
B 7484 6255 1 1 0.01% 0.02%
C 7484 6255 0 0 0.00% 0.00%
D 7484 6253 2 2 0.03% 0.03%

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 12 194 7791 43.79 793 778 160.2
A 0 226 7705 43.25 793 778 160.2
A 13 254 2388 10.05 793 778 160.2
B 15 204 63489 413.27 800 782 151.7
B 12 111 14680 91.6 800 782 151.7
B 4 81 14074 87.6 800 782 151.7
C 1 16 9906 51.16 779 783 178.3
C 13 61 6419 31.61 779 783 178.3
C 7 236 3315 14.2 779 783 178.3
D 8 195 30822 158.22 776 751 190.1
D 2 14 17657 88.95 776 751 190.1
D 6 223 8223 39.31 776 751 190.1

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