ASTROSAT CZTI

Data Quality Report

Orbit 14580

Creation date: 2024-06-27T16:57:06.163545
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/AS1A04_089T01_9000002146_14580cztM0_level2.evt modeM0/AS1A04_089T01_9000002146_14580cztM0_level2_quad_clean.evt
Size (bytes)84,755,52014,048,640
Size80.8 MB 13.4 MB
Events in quadrant A624,56555,475
Events in quadrant B600,22196,641
Events in quadrant C672,64392,542
Events in quadrant D589,76694,824

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010680
B010480
C010682
D010684

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032
B033
C020
D021

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01762815233
B0116679146
C0126579921
D0116399049

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A837232.747909%
B1203201.662510%
C1156121.038062%
D1228120.977199%

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 5445 1305 6 6 0.11% 0.46%
B 5452 1857 0 0 0.00% 0.00%
C 5452 1805 0 0 0.00% 0.00%
D 5424 1848 0 0 0.00% 0.00%

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 0 23 196136 8466.13 103 101 23.2
A 0 226 12620 540.66 103 101 23.2
A 12 189 8797 375.55 103 101 23.2
B 10 16 13511 433.64 147 143 30.8
B 12 111 3330 103.38 147 143 30.8
B 11 111 2934 90.54 147 143 30.8
C 3 233 133170 3965.67 138 138 33.5
C 13 61 939 23.88 138 138 33.5
C 3 232 477 10.11 138 138 33.5
D 10 199 24363 647.31 146 142 37.4
D 12 110 8358 219.58 146 142 37.4
D 2 234 4736 122.78 146 142 37.4

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