ASTROSAT CZTI

Data Quality Report

Orbit 20113

Creation date: 2024-06-27T18:11:29.029137
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/AS1A05_180T01_9000002992_20113cztM0_level2.evt modeM0/AS1A05_180T01_9000002992_20113cztM0_level2_quad_clean.evt
Size (bytes)1,160,579,520184,662,720
Size1.1 GB 176.1 MB
Events in quadrant A8,031,1331,189,179
Events in quadrant B8,285,2571,198,999
Events in quadrant C6,330,9431,187,813
Events in quadrant D11,620,0981,114,552

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0324073
B0333753
C0271573
D0433253

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130447475.726771%
B130455173.963204%
C130451811.387505%
D13045166712.778842%

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 14764 13046 425 425 2.88% 3.26%
B 14765 13047 309 309 2.09% 2.37%
C 14765 13047 0 0 0.00% 0.00%
D 14765 13047 1363 1363 9.23% 10.45%

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 14 238 1868779 5919.09 1565 1534 315.5
A 14 254 92696 288.98 1565 1534 315.5
A 14 237 18473 53.7 1565 1534 315.5
B 10 245 2021756 6795.06 1563 1527 297.3
B 0 183 59200 193.98 1563 1527 297.3
B 12 111 36491 117.6 1563 1527 297.3
C 14 238 239708 660.36 1536 1549 360.6
C 3 233 82320 223.96 1536 1549 360.6
C 8 128 15124 37.64 1536 1549 360.6
D 1 52 5934906 16648.18 1467 1429 356.4
D 7 238 53239 145.37 1467 1429 356.4
D 2 234 52054 142.04 1467 1429 356.4

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter