ASTROSAT CZTI

Data Quality Report

Orbit 06511

Creation date: 2024-06-27T15:08:14.152379
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_06511cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06511cztM0_level2_quad_clean.evt
Size (bytes)456,799,68098,421,120
Size435.6 MB 93.9 MB
Events in quadrant A3,001,687639,369
Events in quadrant B3,068,494657,434
Events in quadrant C2,961,982642,569
Events in quadrant D4,371,816599,225

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134273
B0134842
C0133482
D0173282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6337200.315607%
B6337390.615433%
C6337200.315607%
D6337861.357109%

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 7562 6338 0 0 0.00% 0.00%
B 7562 6338 9 9 0.12% 0.14%
C 7562 6338 0 0 0.00% 0.00%
D 7562 6338 89 89 1.18% 1.40%

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 82884 542.19 745 729 151.5
A 8 15 49875 324.34 745 729 151.5
A 0 226 7059 41.77 745 729 151.5
B 4 172 39770 274.27 758 741 142.3
B 0 197 22414 152.3 758 741 142.3
B 0 219 18676 126.03 758 741 142.3
C 4 254 74778 438.3 728 733 168.9
C 1 16 40899 237.76 728 733 168.9
C 13 61 5780 29.88 728 733 168.9
D 2 152 1446827 8272.07 713 691 174.8
D 2 14 52188 294.57 713 691 174.8
D 7 222 42822 240.99 713 691 174.8

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