ASTROSAT CZTI

Data Quality Report

Orbit 32960

Creation date: 2024-06-27T20:43:54.142753
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/AS1C07_001T01_9000004752_32960cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32960cztM0_level2_quad_clean.evt
Size (bytes)460,969,920102,260,160
Size439.6 MB 97.5 MB
Events in quadrant A2,322,042697,884
Events in quadrant B3,007,021707,158
Events in quadrant C2,592,690719,659
Events in quadrant D5,710,368632,280

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099233
B0120542
C0107052
D0204692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A484650.103178%
B48461683.466777%
C4846611.258770%
D484650810.482872%

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 6968 4846 4 4 0.06% 0.08%
B 6968 4847 118 118 1.69% 2.43%
C 6968 4847 39 39 0.56% 0.80%
D 6968 4845 455 455 6.53% 9.39%

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 0 254 22915 193.15 587 577 115.6
A 13 6 13581 112.44 587 577 115.6
A 13 254 7680 61.42 587 577 115.6
B 5 172 509103 4717.74 586 574 107.8
B 0 219 60256 553.68 586 574 107.8
B 0 230 27528 250.06 586 574 107.8
C 0 10 245938 1842.79 586 593 133.1
C 14 67 16559 119.92 586 593 133.1
C 9 187 13404 96.22 586 593 133.1
D 8 195 1380734 9783.6 552 539 141.1
D 7 223 819802 5807.4 552 539 141.1
D 3 13 253091 1790.23 552 539 141.1

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