ASTROSAT CZTI

Data Quality Report

Orbit 44537

Creation date: 2024-06-27T23:03:55.528531
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_003T01_9000006002_44537cztM0_level2.fits modeM0/AS1A13_003T01_9000006002_44537cztM0_level2_quad_clean.evt
Size (bytes)503,665,920111,997,440
Size480.3 MB 106.8 MB
Events in quadrant A5,028,299760,262
Events in quadrant B3,882,132768,480
Events in quadrant C3,840,941737,141
Events in quadrant D5,349,673637,457

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211420
B0163090
C0161980
D0207902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6999510.728676%
B69991031.471639%
C6999791.128733%
D69995557.929704%

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 6999 6999 12 12 0.17% 0.17%
B 6999 6999 60 60 0.86% 0.86%
C 6999 6999 71 71 1.01% 1.01%
D 6998 6998 523 523 7.47% 7.47%

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 1750938 10474.72 792 773 167.1
A 13 248 191704 1142.72 792 773 167.1
A 10 248 32888 192.2 792 773 167.1
B 5 235 484279 3088.34 781 756 156.6
B 5 255 70218 443.66 781 756 156.6
B 5 172 56686 357.23 781 756 156.6
C 14 254 367926 2033.6 767 772 180.5
C 2 14 187005 1031.51 767 772 180.5
C 3 233 153015 843.25 767 772 180.5
D 2 249 689302 3616.73 751 727 190.4
D 4 232 619919 3252.3 751 727 190.4
D 5 171 487226 2555.33 751 727 190.4

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