ASTROSAT CZTI

Data Quality Report

Orbit 03063

Creation date: 2024-06-27T14:24:09.032127
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_238T03_9000000424_03063cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03063cztM0_level2_quad_clean.evt
Size (bytes)339,454,08041,474,880
Size323.7 MB 39.6 MB
Events in quadrant A2,187,266228,102
Events in quadrant B2,280,897228,184
Events in quadrant C2,613,214224,301
Events in quadrant D2,851,484217,634

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103443
B0104492
C0115972
D0123992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509290.176748%
B5092210.412412%
C50921412.769049%
D50921803.534957%

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 7246 5093 4 4 0.06% 0.08%
B 7246 5093 10 10 0.14% 0.20%
C 7246 5093 129 129 1.78% 2.53%
D 7246 5093 158 158 2.18% 3.10%

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 12 247 46598 411.97 541 528 111.8
A 0 50 18842 163.77 541 528 111.8
A 0 118 11165 95.12 541 528 111.8
B 15 204 40698 373.03 552 541 107.7
B 5 200 26334 239.6 552 541 107.7
B 0 219 25393 230.86 552 541 107.7
C 14 234 317605 2578.59 518 520 123.0
C 14 223 205582 1667.6 518 520 123.0
C 1 16 36931 296.1 518 520 123.0
D 2 152 368656 2651.16 509 498 138.9
D 2 136 141289 1013.86 509 498 138.9
D 10 85 108455 777.42 509 498 138.9

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