ASTROSAT CZTI

Data Quality Report

Orbit 03010

Creation date: 2024-06-27T14:23:24.861716
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_238T02_9000000420_03010cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03010cztM0_level2_quad_clean.evt
Size (bytes)637,741,44062,210,880
Size608.2 MB 59.3 MB
Events in quadrant A2,935,116404,489
Events in quadrant B2,806,242407,158
Events in quadrant C10,344,592316,785
Events in quadrant D2,870,342383,885

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119723
B0115142
C0343202
D0120912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5287701.324002%
B5287280.529601%
C5287280052.960091%
D5287390.737658%

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 7415 5288 58 58 0.78% 1.10%
B 7415 5288 17 17 0.23% 0.32%
C 7415 5287 2963 2963 39.96% 56.04%
D 7415 5288 39 39 0.53% 0.74%

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 14 249 319238 2539.94 627 614 125.4
A 0 50 127400 1010.69 627 614 125.4
A 13 228 17196 132.18 627 614 125.4
B 10 244 207158 1713.75 634 621 120.5
B 0 219 81008 667.01 634 621 120.5
B 3 27 25645 207.64 634 621 120.5
C 0 219 7953078 64495.42 534 536 123.3
C 1 192 250504 2027.25 534 536 123.3
C 6 80 28216 224.49 534 536 123.3
D 7 80 295491 1916.23 603 590 153.9
D 12 112 103222 666.89 603 590 153.9
D 2 209 91841 592.94 603 590 153.9

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