ASTROSAT CZTI

Data Quality Report

Orbit 46634

Creation date: 2024-06-27T23:25:38.437209
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_080T02_9000006242_46634cztM0_level2.fits modeM0/AS1A13_080T02_9000006242_46634cztM0_level2_quad_clean.evt
Size (bytes)29,367,3605,840,640
Size28.0 MB 5.6 MB
Events in quadrant A334,84638,642
Events in quadrant B158,93040,147
Events in quadrant C140,39636,845
Events in quadrant D423,76030,533

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012630
B06830
C06620
D014880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32810.304878%
B32910.303951%
C32910.303951%
D3295015.197568%

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 328 328 0 0 0.00% 0.00%
B 329 329 0 0 0.00% 0.00%
C 329 329 0 0 0.00% 0.00%
D 329 329 61 61 18.54% 18.54%

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 188050 19437.54 36 36 9.7
A 0 243 2026 205.73 36 36 9.7
A 13 254 599 58.2 36 36 9.7
B 5 172 5306 546.36 37 36 9.6
B 4 171 2561 261.78 37 36 9.6
B 12 111 882 87.71 37 36 9.6
C 14 254 1509 143.99 35 35 10.2
C 12 2 829 77.56 35 35 10.2
C 15 208 255 21.49 35 35 10.2
D 1 52 250686 23706.39 33 32 10.6
D 12 128 22587 2133.21 33 32 10.6
D 8 176 7621 717.75 33 32 10.6

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