ASTROSAT CZTI

Data Quality Report

Orbit 46348

Creation date: 2024-06-27T23:22:04.067845
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_070T05_9000006198_46348cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46348cztM0_level2_quad_clean.evt
Size (bytes)645,301,440103,608,000
Size615.4 MB 98.8 MB
Events in quadrant A9,666,065461,742
Events in quadrant B3,963,285786,425
Events in quadrant C4,019,221739,078
Events in quadrant D5,674,060644,685

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0337900
B0169330
C0173380
D0219990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7256318443.880926%
B72571912.631942%
C72572903.996142%
D72577109.783657%

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 7256 7255 1332 1332 18.36% 18.36%
B 7257 7257 95 95 1.31% 1.31%
C 7257 7257 268 268 3.69% 3.69%
D 7257 7257 547 547 7.54% 7.54%

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 15 223 5249762 44821.7 551 538 117.1
A 10 83 2206111 18832.79 551 538 117.1
A 7 3 29595 248.11 551 538 117.1
B 5 172 356232 2242.7 804 779 158.5
B 15 201 230224 1447.66 804 779 158.5
B 4 171 42991 266.33 804 779 158.5
C 9 54 659445 3609.41 776 779 182.5
C 12 2 220397 1203.48 776 779 182.5
C 12 249 50436 272.11 776 779 182.5
D 12 1 1625413 8355.64 765 738 194.4
D 1 52 334906 1718.61 765 738 194.4
D 5 235 223342 1144.84 765 738 194.4

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