ASTROSAT CZTI

Data Quality Report

Orbit 03071

Creation date: 2024-06-27T14:24:14.784486
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_238T03_9000000424_03071cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03071cztM0_level2_quad_clean.evt
Size (bytes)350,709,12073,584,000
Size334.5 MB 70.2 MB
Events in quadrant A2,277,132476,223
Events in quadrant B2,832,922471,907
Events in quadrant C2,570,927461,543
Events in quadrant D2,585,438453,594

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104733
B0118442
C0113612
D0115192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A521030.057582%
B5210130.249520%
C5210410.786948%
D5210210.403071%

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 7366 5211 0 0 0.00% 0.00%
B 7366 5211 6 6 0.08% 0.12%
C 7366 5211 25 25 0.34% 0.48%
D 7366 5211 17 17 0.23% 0.33%

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 8 15 60122 515.7 565 552 115.5
A 13 14 11239 92.52 565 552 115.5
A 12 189 10548 86.54 565 552 115.5
B 15 204 484264 4444.57 567 554 108.8
B 14 167 50983 463.37 567 554 108.8
B 0 219 35896 324.74 567 554 108.8
C 14 223 264996 2063.17 546 549 128.2
C 6 80 30290 232.03 546 549 128.2
C 3 63 30108 230.61 546 549 128.2
D 2 152 233158 1734.32 551 535 134.1
D 10 85 89436 662.8 551 535 134.1
D 2 136 32950 241.67 551 535 134.1

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