ASTROSAT CZTI

Data Quality Report

Orbit 46526

Creation date: 2024-06-27T23:24:14.472193
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_068T07_9000006222_46526cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46526cztM0_level2_quad_clean.evt
Size (bytes)266,538,24042,094,080
Size254.2 MB 40.1 MB
Events in quadrant A3,162,921281,964
Events in quadrant B1,907,366289,966
Events in quadrant C1,529,970290,899
Events in quadrant D3,054,090217,891

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114730
B073760
C064780
D0108990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A270728310.454378%
B27072438.976727%
C2707521.920946%
D270864023.633678%

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 2707 2707 60 60 2.22% 2.22%
B 2706 2706 163 163 6.02% 6.02%
C 2707 2707 33 33 1.22% 1.22%
D 2708 2708 583 583 21.53% 21.53%

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 1477637 20761.93 329 323 71.2
A 9 191 255163 3581.48 329 323 71.2
A 15 174 55646 777.5 329 323 71.2
B 15 201 414893 6194.46 323 311 66.9
B 3 112 71605 1065.24 323 311 66.9
B 0 245 49558 735.82 323 311 66.9
C 15 158 178649 2233.76 329 328 79.8
C 14 254 27628 341.98 329 328 79.8
C 12 249 18223 224.16 329 328 79.8
D 1 52 1554836 20223.47 295 285 76.9
D 4 223 67391 873.0 295 285 76.9
D 13 168 62598 810.64 295 285 76.9

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