ASTROSAT CZTI

Data Quality Report

Orbit 46782

Creation date: 2024-06-27T23:27:34.548101
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_053T01_9000006266_46782cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46782cztM0_level2_quad_clean.evt
Size (bytes)509,261,760111,720,960
Size485.7 MB 106.5 MB
Events in quadrant A6,644,990736,896
Events in quadrant B4,397,334764,337
Events in quadrant C3,042,644729,225
Events in quadrant D4,220,387662,320

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242121
B0178141
C0144731
D0176501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70362813.993746%
B70371532.174222%
C7037330.468950%
D70372423.438965%

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 7601 7036 102 102 1.34% 1.45%
B 7602 7038 40 40 0.53% 0.57%
C 7602 7038 10 10 0.13% 0.14%
D 7602 7038 207 207 2.72% 2.94%

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 3374813 21689.8 752 735 155.6
A 13 248 303869 1948.66 752 735 155.6
A 3 7 43012 271.77 752 735 155.6
B 3 112 1087277 7284.21 755 731 149.2
B 4 171 112776 751.15 755 731 149.2
B 5 172 100342 667.79 755 731 149.2
C 1 241 49616 279.66 747 750 174.7
C 14 254 27344 152.2 747 750 174.7
C 3 233 24759 137.41 747 750 174.7
D 13 249 611123 3299.7 739 714 185.0
D 1 52 560594 3026.56 739 714 185.0
D 2 249 66195 353.97 739 714 185.0

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