ASTROSAT CZTI

Data Quality Report

Orbit 14153

Creation date: 2024-06-27T16:51:06.654197
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/AS1G08_068T01_9000002090_14153cztM0_level2.evt modeM0/AS1G08_068T01_9000002090_14153cztM0_level2_quad_clean.evt
Size (bytes)1,383,336,000210,631,680
Size1.3 GB 200.9 MB
Events in quadrant A8,521,1141,319,411
Events in quadrant B9,149,6841,377,984
Events in quadrant C9,309,1421,271,437
Events in quadrant D13,721,2021,191,947

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0361933
B0376933
C0374203
D0521093

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03600
B03600
C03600
D03600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A176741030.582777%
B176741370.775150%
C17674810.458300%
D1767416049.075478%

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 20230 17678 0 0 0.00% 0.00%
B 20230 17678 25 25 0.12% 0.14%
C 20230 17678 1 1 0.00% 0.01%
D 20230 17678 1206 1206 5.96% 6.82%

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 8 15 88123 196.51 2172 2125 437.6
A 12 189 47908 104.62 2172 2125 437.6
A 12 96 25081 52.45 2172 2125 437.6
B 0 85 189357 455.63 2176 2129 410.9
B 0 189 138367 331.54 2176 2129 410.9
B 3 209 119174 284.83 2176 2129 410.9
C 3 233 1146141 2363.81 2091 2104 484.0
C 13 61 14608 25.84 2091 2104 484.0
C 14 234 12463 21.4 2091 2104 484.0
D 10 157 4483475 9394.12 2011 1964 477.1
D 12 110 447204 933.31 2011 1964 477.1
D 1 52 390260 813.94 2011 1964 477.1

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