ASTROSAT CZTI

Data Quality Report

Orbit 19349

Creation date: 2024-06-27T18:01:40.935892
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_204T01_9000002856_19349cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19349cztM0_level2_quad_clean.evt
Size (bytes)578,024,64088,963,200
Size551.2 MB 84.8 MB
Events in quadrant A3,602,317564,543
Events in quadrant B3,647,225567,861
Events in quadrant C3,589,757540,677
Events in quadrant D6,176,410518,223

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152272
B0153182
C0150853
D0231912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72211341.855699%
B72221472.035447%
C72211421.966487%
D722175110.400222%

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 9211 7221 0 0 0.00% 0.00%
B 9212 7222 1 1 0.01% 0.01%
C 9211 7221 0 0 0.00% 0.00%
D 9210 7220 564 564 6.12% 7.81%

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 13 254 8005 37.69 934 915 188.1
A 0 226 7982 37.57 934 915 188.1
A 3 137 7339 34.15 934 915 188.1
B 12 111 21524 116.38 923 901 177.2
B 0 230 19967 107.59 923 901 177.2
B 11 111 19267 103.64 923 901 177.2
C 14 238 138159 663.28 882 888 207.0
C 3 233 11768 52.57 882 888 207.0
C 13 61 6109 25.23 882 888 207.0
D 7 238 1951163 9270.04 864 841 210.4
D 13 104 289317 1371.15 864 841 210.4
D 10 66 216364 1024.4 864 841 210.4

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