ASTROSAT CZTI

Data Quality Report

Orbit 06525

Creation date: 2024-06-27T15:08:24.596770
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_136T02_9000000876_06525cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06525cztM0_level2_quad_clean.evt
Size (bytes)428,299,20099,535,680
Size408.5 MB 94.9 MB
Events in quadrant A2,950,939642,340
Events in quadrant B3,345,136653,636
Events in quadrant C2,927,989646,117
Events in quadrant D3,301,764615,737

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134353
B0145022
C0134762
D0145632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6543100.152835%
B6543971.482500%
C6543110.168119%
D6544270.412592%

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 7748 6544 0 0 0.00% 0.00%
B 7748 6544 63 63 0.81% 0.96%
C 7748 6544 1 1 0.01% 0.02%
D 7749 6545 20 20 0.26% 0.31%

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 15 236 17915 111.04 758 743 154.7
A 0 226 7189 41.68 758 743 154.7
A 12 194 6828 39.35 758 743 154.7
B 4 48 215920 1481.73 767 750 145.2
B 0 219 48594 329.47 767 750 145.2
B 4 170 28176 188.86 767 750 145.2
C 9 237 15790 87.78 744 749 171.4
C 13 61 5812 29.55 744 749 171.4
C 12 4 5787 29.4 744 749 171.4
D 2 136 168355 924.99 735 712 181.2
D 12 233 127411 699.08 735 712 181.2
D 2 63 65813 359.2 735 712 181.2

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