ASTROSAT CZTI

Data Quality Report

Orbit 05855

Creation date: 2024-06-27T15:00:02.951269
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/AS1G06_033T01_9000000760_05855cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05855cztM0_level2_quad_clean.evt
Size (bytes)46,681,92011,914,560
Size44.5 MB 11.4 MB
Events in quadrant A316,93075,463
Events in quadrant B343,53775,875
Events in quadrant C321,20076,584
Events in quadrant D379,08373,895

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148333
B0151428
C0148622
D0159024

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72400.000000%
B72610.137741%
C72900.000000%
D72800.000000%

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 740 737 0 0 0.00% 0.00%
B 740 738 0 0 0.00% 0.00%
C 740 740 0 0 0.00% 0.00%
D 739 738 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 15 234 1491 73.77 81 79 19.1
A 12 194 870 41.32 81 79 19.1
A 0 226 816 38.5 81 79 19.1
B 0 219 8219 446.0 82 81 18.2
B 15 85 4249 228.43 82 81 18.2
B 0 214 3745 200.81 82 81 18.2
C 8 128 2058 93.98 81 81 21.0
C 8 112 1028 45.02 81 81 21.0
C 8 144 771 32.8 81 81 21.0
D 1 239 27718 1261.65 81 78 21.9
D 2 152 11671 529.17 81 78 21.9
D 1 20 9811 444.27 81 78 21.9

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