ASTROSAT CZTI

Data Quality Report

Orbit 12962

Creation date: 2024-06-27T16:34:25.597523
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/AS1G08_033T01_9000001906_12962cztM0_level2.evt modeM0/AS1G08_033T01_9000001906_12962cztM0_level2_quad_clean.evt
Size (bytes)407,462,40074,545,920
Size388.6 MB 71.1 MB
Events in quadrant A3,013,374485,616
Events in quadrant B3,674,071464,709
Events in quadrant C2,341,797483,440
Events in quadrant D2,957,398459,612

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125162
B0143681
C0105351
D0123811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5198691.327434%
B519853210.234706%
C5198190.365525%
D51981803.462870%

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 5909 5200 23 23 0.39% 0.44%
B 5909 5200 324 324 5.48% 6.23%
C 5909 5200 1 1 0.02% 0.02%
D 5909 5200 140 140 2.37% 2.69%

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 12 189 232679 1861.89 607 594 124.7
A 1 162 116895 933.02 607 594 124.7
A 15 223 116795 932.22 607 594 124.7
B 4 239 1098136 9959.56 577 563 110.2
B 3 64 227998 2063.78 577 563 110.2
B 0 219 30485 271.52 577 563 110.2
C 14 234 20381 143.04 594 596 138.3
C 13 61 4489 28.15 594 596 138.3
C 8 222 2361 12.76 594 596 138.3
D 1 52 433430 3009.96 587 568 143.8
D 8 195 129714 898.03 587 568 143.8
D 12 110 100215 692.9 587 568 143.8

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