ASTROSAT CZTI

Data Quality Report

Orbit 44832

Creation date: 2024-06-27T23:07:00.570362
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/AS1A13_017T01_9000006028_44832cztM0_level2.fits modeM0/AS1A13_017T01_9000006028_44832cztM0_level2_quad_clean.evt
Size (bytes)513,904,320107,933,760
Size490.1 MB 102.9 MB
Events in quadrant A5,413,284721,117
Events in quadrant B3,308,511756,281
Events in quadrant C3,153,190712,825
Events in quadrant D6,628,089610,662

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215342
B0142722
C0141762
D0242752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67032453.655080%
B67031021.521707%
C6702831.238436%
D670267310.041779%

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 7713 6704 67 67 0.87% 1.00%
B 7713 6704 16 16 0.21% 0.24%
C 7712 6703 21 21 0.27% 0.31%
D 7712 6703 574 574 7.44% 8.56%

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 10 83 2198119 13946.97 760 743 157.6
A 13 248 243033 1537.84 760 743 157.6
A 2 79 17964 109.3 760 743 157.6
B 5 172 75814 497.08 758 736 151.0
B 0 155 56221 367.36 758 736 151.0
B 4 171 52228 340.92 758 736 151.0
C 14 254 109638 623.31 744 748 174.7
C 3 233 77442 439.01 744 748 174.7
C 12 2 31537 176.24 744 748 174.7
D 13 187 1254728 6948.4 718 695 180.5
D 5 235 1095552 6066.43 718 695 180.5
D 1 52 312269 1726.38 718 695 180.5

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