ASTROSAT CZTI

Data Quality Report

Orbit 45024

Creation date: 2024-06-27T23:09:07.000152
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_020T01_9000006040_45024cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45024cztM0_level2_quad_clean.evt
Size (bytes)533,255,040102,182,400
Size508.6 MB 97.4 MB
Events in quadrant A5,079,420712,705
Events in quadrant B3,868,914727,645
Events in quadrant C3,029,569708,214
Events in quadrant D7,296,948527,261

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189381
B0153843
C0129201
D0259181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59881752.922512%
B59872183.641223%
C59881312.187709%
D5988138923.196393%

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 7163 5989 10 10 0.14% 0.17%
B 7162 5988 84 84 1.17% 1.40%
C 7163 5989 56 56 0.78% 0.94%
D 7163 5989 1221 1221 17.05% 20.39%

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 2193996 14627.74 724 708 149.9
A 13 248 39648 259.7 724 708 149.9
A 0 243 27759 180.41 724 708 149.9
B 0 183 313566 2243.76 713 694 139.4
B 0 189 297525 2128.72 713 694 139.4
B 5 255 122271 871.89 713 694 139.4
C 1 3 233491 1396.92 712 718 166.6
C 12 2 14295 81.48 712 718 166.6
C 3 233 5818 30.61 712 718 166.6
D 12 233 2041826 12073.38 666 647 169.1
D 11 241 962570 5689.69 666 647 169.1
D 13 187 357845 2112.79 666 647 169.1

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