ASTROSAT CZTI

Data Quality Report

Orbit 08349

Creation date: 2024-06-27T15:31:25.434592
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/AS1G07_029T01_9000001158_08349cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08349cztM0_level2_quad_clean.evt
Size (bytes)659,148,48071,354,880
Size628.6 MB 68.0 MB
Events in quadrant A10,460,023357,152
Events in quadrant B3,088,304471,302
Events in quadrant C2,903,583455,006
Events in quadrant D3,085,492439,314

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0351493
B0130624
C0127562
D0133452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6260351356.118211%
B6259220.351494%
C626090.143770%
D6260250.399361%

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 7485 6261 3179 3179 42.47% 50.77%
B 7485 6261 1 1 0.01% 0.02%
C 7485 6261 0 0 0.00% 0.00%
D 7485 6261 18 18 0.24% 0.29%

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 15 236 8192316 70511.94 571 560 116.2
A 14 111 55007 468.66 571 560 116.2
A 15 239 18155 151.45 571 560 116.2
B 4 80 21946 142.7 778 761 148.5
B 0 214 19064 123.29 778 761 148.5
B 12 111 16441 105.62 778 761 148.5
C 13 61 5664 28.46 744 746 172.8
C 3 202 1887 6.6 744 746 172.8
C -1 -1 -1 -1.0 744 746 172.8
D 2 14 134473 739.01 737 720 181.0
D 2 152 78229 428.25 737 720 181.0
D 2 136 42037 228.29 737 720 181.0

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