ASTROSAT CZTI

Data Quality Report

Orbit 05774

Creation date: 2024-06-27T14:58:58.707528
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_002T01_9000000742_05774cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05774cztM0_level2_quad_clean.evt
Size (bytes)433,592,64063,000,000
Size413.5 MB 60.1 MB
Events in quadrant A3,014,173367,597
Events in quadrant B3,415,326376,743
Events in quadrant C3,061,948376,547
Events in quadrant D3,221,519357,063

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013077296
B014205327
C013237259
D013778315

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01262
B01262
C01264
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6153280.455063%
B6145721.171684%
C6171390.631988%
D6149821.333550%

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 7623 6255 0 0 0.00% 0.00%
B 7623 6254 10 10 0.13% 0.16%
C 7623 6255 0 0 0.00% 0.00%
D 7623 6268 40 40 0.52% 0.64%

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 0 226 7460 42.68 783 767 156.8
A 12 194 7412 42.37 783 767 156.8
A 7 16 4130 21.44 783 767 156.8
B 15 204 184791 1248.5 796 782 147.4
B 4 81 92064 619.35 796 782 147.4
B 0 219 54443 364.09 796 782 147.4
C 9 160 9202 47.1 780 784 178.7
C 13 61 6327 31.01 780 784 178.7
C 7 236 4242 19.35 780 784 178.7
D 4 95 144900 773.53 767 744 186.4
D 2 136 59622 315.93 767 744 186.4
D 8 195 34145 179.23 767 744 186.4

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