ASTROSAT CZTI

Data Quality Report

Orbit 03709

Creation date: 2024-06-27T14:32:42.416943
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_009T01_9000000482_03709cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03709cztM0_level2_quad_clean.evt
Size (bytes)525,346,56084,312,000
Size501.0 MB 80.4 MB
Events in quadrant A3,533,656519,461
Events in quadrant B5,008,071513,908
Events in quadrant C3,321,078514,351
Events in quadrant D3,556,492501,898

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156123
B0197812
C0150242
D0158282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72251241.716263%
B72252413.335640%
C7225851.176471%
D72251121.550173%

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 7545 7228 29 29 0.38% 0.40%
B 7545 7228 104 104 1.38% 1.44%
C 7545 7228 7 7 0.09% 0.10%
D 7545 7227 36 36 0.48% 0.50%

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 13 251 175657 1001.62 850 831 174.5
A 13 248 28698 159.66 850 831 174.5
A 0 50 19585 107.45 850 831 174.5
B 14 167 1068603 6300.22 856 836 169.5
B 3 0 311831 1834.99 856 836 169.5
B 15 204 234026 1375.91 856 836 169.5
C 9 247 57974 290.15 830 833 196.9
C 7 239 11587 54.6 830 833 196.9
C 13 61 6915 30.88 830 833 196.9
D 4 239 103893 517.08 825 802 199.4
D 4 160 79435 394.4 825 802 199.4
D 13 223 51059 252.08 825 802 199.4

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
Veto Counter