ASTROSAT CZTI

Data Quality Report

Orbit 03866

Creation date: 2024-06-27T14:34:33.776598
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/AS1G05_083T01_9000000494_03866cztM0_level2.evt modeM0/AS1G05_083T01_9000000494_03866cztM0_level2_quad_clean.evt
Size (bytes)121,080,96021,116,160
Size115.5 MB 20.1 MB
Events in quadrant A890,163128,877
Events in quadrant B801,667134,641
Events in quadrant C1,058,590132,861
Events in quadrant D807,666127,096

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036402
B034281
C042491
D035981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15591137.248236%
B15591056.735087%
C15591348.595253%
D1559895.708788%

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 2674 1559 1 1 0.04% 0.06%
B 2674 1559 0 0 0.00% 0.00%
C 2674 1559 4 4 0.15% 0.26%
D 2674 1559 4 4 0.15% 0.26%

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 84435 1871.87 205 200 45.0
A 15 234 8411 182.45 205 200 45.0
A 0 50 6828 147.28 205 200 45.0
B 15 204 14977 358.65 201 196 41.2
B 0 219 3632 83.37 201 196 41.2
B 12 111 3552 81.43 201 196 41.2
C 2 53 291924 6460.81 189 189 45.2
C 14 67 20099 440.93 189 189 45.2
C 7 202 6281 134.91 189 189 45.2
D 13 248 35556 641.75 196 192 55.1
D 2 33 10631 189.44 196 192 55.1
D 14 34 4661 81.1 196 192 55.1

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
Veto Counter