ASTROSAT CZTI

Data Quality Report

Orbit 19624

Creation date: 2024-06-27T18:04:53.327724
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/AS1T03_116T01_9000002916_19624cztM0_level2.evt modeM0/AS1T03_116T01_9000002916_19624cztM0_level2_quad_clean.evt
Size (bytes)524,831,040102,945,600
Size500.5 MB 98.2 MB
Events in quadrant A3,104,262676,872
Events in quadrant B3,267,859691,383
Events in quadrant C3,352,870663,930
Events in quadrant D5,727,684631,039

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135062
B0139612
C0141433
D0215772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6518190.291500%
B6518530.813133%
C6517821.258248%
D65174206.444683%

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 7628 6519 0 0 0.00% 0.00%
B 7628 6519 2 2 0.03% 0.03%
C 7627 6518 0 0 0.00% 0.00%
D 7627 6517 344 344 4.51% 5.28%

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 6909 37.8 805 790 161.9
A 3 137 6234 33.63 805 790 161.9
A 13 254 6188 33.34 805 790 161.9
B 7 220 40104 254.39 809 791 154.5
B 0 230 27960 175.81 809 791 154.5
B 12 111 18748 116.2 809 791 154.5
C 3 233 169558 911.5 782 790 185.2
C 14 238 122016 654.73 782 790 185.2
C 8 208 7860 38.18 782 790 185.2
D 1 52 1733378 9140.45 771 750 189.6
D 7 238 1028745 5423.17 771 750 189.6
D 12 233 32227 166.06 771 750 189.6

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