ASTROSAT CZTI

Data Quality Report

Orbit 46465

Creation date: 2024-11-13T05:35:25.358735
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/AS1A13_037T01_9000006212_46465cztM0_level2.fits modeM0/AS1A13_037T01_9000006212_46465cztM0_level2_quad_clean.evt
Size (bytes)305,314,56057,732,480
Size291.2 MB 55.1 MB
Events in quadrant A3,434,882395,484
Events in quadrant B1,808,376401,974
Events in quadrant C1,659,334380,137
Events in quadrant D4,106,961305,766

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128540
B079384
C076660
D0147860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3748140.373533%
B3746230.613988%
C374930.080021%
D374961216.324353%

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 3748 3748 0 0 0.00% 0.00%
B 3749 3748 16 16 0.43% 0.43%
C 3749 3749 1 1 0.03% 0.03%
D 3749 3749 561 561 14.96% 14.96%

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 10 83 1805875 20874.07 408 399 86.5
A 0 243 14402 161.9 408 399 86.5
A 0 247 10247 113.86 408 399 86.5
B 5 172 88752 1098.43 405 394 80.4
B 15 201 23055 281.71 405 394 80.4
B 0 245 18840 229.31 405 394 80.4
C 3 233 44974 465.54 399 400 95.7
C 12 2 31049 320.11 399 400 95.7
C 12 249 27113 279.0 399 400 95.7
D 1 52 1332580 13961.29 373 361 95.4
D 12 233 650428 6812.52 373 361 95.4
D 10 181 218307 2284.01 373 361 95.4

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