ASTROSAT CZTI

Data Quality Report

Orbit 09782

Creation date: 2024-06-27T15:50:34.880475
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/AS1A03_080T01_9000001392_09782cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09782cztM0_level2_quad_clean.evt
Size (bytes)433,494,72094,440,960
Size413.4 MB 90.1 MB
Events in quadrant A3,027,398602,347
Events in quadrant B3,262,998618,147
Events in quadrant C2,997,122609,490
Events in quadrant D3,398,662576,674

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01331811
B01393417
C01325114
D0146746

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6497170.261659%
B6494200.307977%
C6495110.169361%
D6499741.138637%

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 8866 6503 0 0 0.00% 0.00%
B 8866 6503 4 4 0.05% 0.06%
C 8866 6503 1 1 0.01% 0.02%
D 8866 6503 53 53 0.60% 0.82%

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 5 112 11046 65.04 781 767 158.1
A 0 226 7218 40.82 781 767 158.1
A 12 194 6392 35.59 781 767 158.1
B 0 214 63080 413.0 794 775 150.9
B 4 239 31102 201.03 794 775 150.9
B 10 245 25567 164.34 794 775 150.9
C 13 61 5832 28.72 765 771 176.2
C 14 234 4643 21.97 765 771 176.2
C 12 4 3619 16.16 765 771 176.2
D 2 152 287460 1520.24 749 730 188.6
D 2 14 80775 424.4 749 730 188.6
D 7 71 66447 348.43 749 730 188.6

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