ASTROSAT CZTI

Data Quality Report

Orbit 03399

Creation date: 2024-06-27T14:28:29.566038
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/AS1G05_210T01_9000000454_03399cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03399cztM0_level2_quad_clean.evt
Size (bytes)420,166,08077,172,480
Size400.7 MB 73.6 MB
Events in quadrant A2,760,539483,057
Events in quadrant B3,437,062481,272
Events in quadrant C3,398,521478,830
Events in quadrant D2,711,751465,801

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125362
B0145541
C0143541
D0126501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6129390.636319%
B6129811.321586%
C61291582.577908%
D6129350.571056%

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 7324 6130 0 0 0.00% 0.00%
B 7324 6130 31 31 0.42% 0.51%
C 7324 6130 103 103 1.41% 1.68%
D 7324 6130 5 5 0.07% 0.08%

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 12 194 7593 47.43 715 699 145.3
A 0 226 7515 46.9 715 699 145.3
A 10 17 3898 22.01 715 699 145.3
B 15 204 304861 2192.77 723 707 138.7
B 3 0 153392 1100.77 723 707 138.7
B 14 167 139619 1001.47 723 707 138.7
C 7 220 331467 2033.69 697 700 162.6
C 14 223 257760 1580.51 697 700 162.6
C 1 192 36883 222.47 697 700 162.6
D 13 239 27422 157.82 699 681 169.4
D 13 112 15053 84.82 699 681 169.4
D 12 79 12967 72.51 699 681 169.4

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