ASTROSAT CZTI

Data Quality Report

Orbit 46333

Creation date: 2024-06-27T23:21:52.604768
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_46333cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46333cztM0_level2_quad_clean.evt
Size (bytes)530,398,08053,136,000
Size505.8 MB 50.7 MB
Events in quadrant A8,692,880114,794
Events in quadrant B4,433,636404,790
Events in quadrant C1,995,262451,977
Events in quadrant D4,194,021348,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286652
B0160812
C088002
D0152692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4082323879.323861%
B408273718.054875%
C4081330.808625%
D408174518.255330%

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 4122 4084 2296 2296 55.70% 56.22%
B 4122 4084 233 233 5.65% 5.71%
C 4121 4083 3 3 0.07% 0.07%
D 4121 4083 647 647 15.70% 15.85%

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 6407835 100472.18 297 289 63.8
A 10 83 1121142 17575.3 297 289 63.8
A 13 254 4292 62.77 297 289 63.8
B 3 112 1899278 19398.94 480 465 97.9
B 4 171 374447 3820.73 480 465 97.9
B 5 172 178904 1823.0 480 465 97.9
C 12 2 40603 337.34 496 496 118.9
C 0 207 14895 121.11 496 496 118.9
C 12 249 4830 36.45 496 496 118.9
D 13 249 2078854 17929.63 456 441 115.9
D 1 52 160548 1381.18 456 441 115.9
D 2 120 38348 327.01 456 441 115.9

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