ASTROSAT CZTI

Data Quality Report

Orbit 44690

Creation date: 2024-06-27T23:05:19.746657
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_073T04_9000006010_44690cztM0_level2.fits modeM0/AS1A13_073T04_9000006010_44690cztM0_level2_quad_clean.evt
Size (bytes)268,456,32062,015,040
Size256.0 MB 59.1 MB
Events in quadrant A3,675,823400,594
Events in quadrant B1,777,643435,009
Events in quadrant C1,717,120417,242
Events in quadrant D2,484,696368,973

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137841
B076461
C075651
D098711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36142657.332595%
B3614310.857775%
C3614190.525733%
D36141403.873824%

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 4819 3615 180 180 3.74% 4.98%
B 4819 3615 7 7 0.15% 0.19%
C 4819 3615 10 10 0.21% 0.28%
D 4819 3615 96 96 1.99% 2.66%

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 1067366 12130.09 416 407 88.0
A 15 223 587422 6673.68 416 407 88.0
A 13 248 220310 2500.04 416 407 88.0
B 0 219 29295 342.27 423 409 84.4
B 0 186 21946 255.19 423 409 84.4
B 0 168 18062 209.17 423 409 84.4
C 2 14 28413 288.31 415 418 97.1
C 3 233 25899 262.42 415 418 97.1
C 12 2 16832 169.04 415 418 97.1
D 1 52 313192 3031.17 408 396 103.2
D 11 241 218063 2109.32 408 396 103.2
D 2 249 101304 977.86 408 396 103.2

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