ASTROSAT CZTI

Data Quality Report

Orbit 03198

Creation date: 2024-06-27T14:26:26.194282
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/AS1SLEW_01234_9000000437_03198cztM0_level2.evt modeM0/AS1SLEW_01234_9000000437_03198cztM0_level2_quad_clean.evt
Size (bytes)54,656,64013,561,920
Size52.1 MB 12.9 MB
Events in quadrant A317,29588,851
Events in quadrant B323,74890,047
Events in quadrant C639,64086,281
Events in quadrant D319,92684,712

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015300
B015430
C024490
D015630

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75910.131752%
B75900.000000%
C75930.395257%
D75920.263505%

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 759 759 0 0 0.00% 0.00%
B 759 759 0 0 0.00% 0.00%
C 759 759 4 4 0.53% 0.53%
D 759 759 2 2 0.26% 0.26%

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 3 1 4365 232.87 80 78 18.4
A 0 118 2703 142.59 80 78 18.4
A 0 226 1040 52.26 80 78 18.4
B 5 70 8134 455.2 81 80 17.7
B 4 81 2324 126.83 81 80 17.7
B 12 111 978 50.75 81 80 17.7
C 12 206 273422 13760.58 77 77 19.9
C 14 223 24664 1237.74 77 77 19.9
C 6 80 17220 863.0 77 77 19.9
D 13 223 24667 1236.19 75 73 19.9
D 13 239 4037 199.25 75 73 19.9
D 6 17 3712 182.91 75 73 19.9

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
Veto Counter