ASTROSAT CZTI

Data Quality Report

Orbit 32885

Creation date: 2024-06-27T20:43:05.899086
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/AS1A11_005T05_9000004744_32885cztM0_level2.evt modeM0/AS1A11_005T05_9000004744_32885cztM0_level2_quad_clean.evt
Size (bytes)548,821,44078,600,960
Size523.4 MB 75.0 MB
Events in quadrant A2,550,031522,005
Events in quadrant B3,537,425512,184
Events in quadrant C3,167,103529,449
Events in quadrant D6,996,719433,853

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111273
B0139532
C0128522
D0245462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A545960.109910%
B54593296.026745%
C54591643.004213%
D545990216.523173%

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 8984 5461 0 0 0.00% 0.00%
B 8984 5461 207 207 2.30% 3.79%
C 8984 5461 126 126 1.40% 2.31%
D 8984 5461 837 837 9.32% 15.33%

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 9 143 15886 117.98 653 642 129.2
A 13 254 10811 78.7 653 642 129.2
A 14 63 6393 44.51 653 642 129.2
B 5 172 836001 6930.67 639 623 120.5
B 0 219 45729 374.22 639 623 120.5
B 0 190 43233 353.51 639 623 120.5
C 0 10 464884 3176.41 644 651 146.2
C 3 233 76501 518.99 644 651 146.2
C 0 207 48104 324.69 644 651 146.2
D 8 195 2187179 14416.5 594 583 151.7
D 7 80 1270162 8370.49 594 583 151.7
D 12 218 346312 2279.43 594 583 151.7

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