ASTROSAT CZTI

Data Quality Report

Orbit 19411

Creation date: 2024-06-27T18:02:42.058788
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_028T01_9000002880_19411cztM0_level2.evt modeM0/AS1T03_028T01_9000002880_19411cztM0_level2_quad_clean.evt
Size (bytes)536,181,12073,189,440
Size511.3 MB 69.8 MB
Events in quadrant A3,533,272454,667
Events in quadrant B3,741,264455,954
Events in quadrant C3,546,799426,124
Events in quadrant D4,973,988423,624

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143072
B0151132
C0143162
D0193192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65291271.945168%
B65291372.098331%
C65291652.527186%
D65292163.308317%

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 7824 6529 0 0 0.00% 0.00%
B 7824 6529 11 11 0.14% 0.17%
C 7824 6529 4 4 0.05% 0.06%
D 7824 6529 111 111 1.42% 1.70%

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 9950 49.72 916 900 182.0
A 0 226 7980 38.89 916 900 182.0
A 3 137 6775 32.27 916 900 182.0
B 7 220 126049 742.4 899 880 168.6
B 0 197 23196 132.36 899 880 168.6
B 0 198 22804 130.04 899 880 168.6
C 14 238 136180 691.53 851 857 195.7
C 3 233 45326 227.25 851 857 195.7
C 0 207 23149 113.92 851 857 195.7
D 7 238 1423780 6678.66 879 856 213.1
D 1 52 123044 573.5 879 856 213.1
D 7 38 56153 259.54 879 856 213.1

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