ASTROSAT CZTI

Data Quality Report

Orbit 05309

Creation date: 2024-06-27T14:53:44.824497
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_240T01_9000000674_05309cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05309cztM0_level2_quad_clean.evt
Size (bytes)464,201,28079,859,520
Size442.7 MB 76.2 MB
Events in quadrant A3,004,510499,187
Events in quadrant B3,316,176509,143
Events in quadrant C3,335,385490,756
Events in quadrant D3,961,368466,366

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134253
B0142522
C0142272
D0162062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6491380.585426%
B6491390.600832%
C6491200.308119%
D64911712.634417%

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 7676 6492 6 6 0.08% 0.09%
B 7676 6492 10 10 0.13% 0.15%
C 7676 6492 0 0 0.00% 0.00%
D 7676 6492 127 127 1.65% 1.96%

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 0 50 39973 250.16 769 751 156.8
A 12 194 7676 44.17 769 751 156.8
A 0 226 7562 43.44 769 751 156.8
B 4 48 91803 609.54 784 767 149.4
B 10 16 87475 580.57 784 767 149.4
B 15 204 80142 531.47 784 767 149.4
C 1 16 401616 2304.94 748 754 173.9
C 12 4 7100 36.49 748 754 173.9
C 13 61 6123 30.87 748 754 173.9
D 2 234 886551 4972.84 733 710 178.1
D 8 195 110366 615.58 733 710 178.1
D 14 34 44506 245.86 733 710 178.1

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