ASTROSAT CZTI

Data Quality Report

Orbit 47015

Creation date: 2024-06-27T23:30:46.169838
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/AS1C09_005T01_9000006296_47015cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47015cztM0_level2_quad_clean.evt
Size (bytes)420,223,68052,577,280
Size400.8 MB 50.1 MB
Events in quadrant A3,738,729394,652
Events in quadrant B7,160,542154,820
Events in quadrant C2,034,649406,920
Events in quadrant D2,326,594368,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136921
B0238821
C088121
D095262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37782917.702488%
B3778267170.698782%
C3778892.355744%
D37771925.083400%

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 3793 3779 3 3 0.08% 0.08%
B 3793 3779 1614 1614 42.55% 42.71%
C 3793 3779 58 58 1.53% 1.53%
D 3792 3778 83 83 2.19% 2.20%

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 1888607 19621.19 454 442 96.2
A 9 191 80595 832.92 454 442 96.2
A 13 254 6618 64.18 454 442 96.2
B 3 112 5104445 73296.42 344 332 69.6
B 5 255 266145 3817.15 344 332 69.6
B 5 172 180290 2584.24 344 332 69.6
C 14 254 284219 2719.48 442 442 104.3
C 12 250 9886 90.5 442 442 104.3
C 7 220 5911 52.41 442 442 104.3
D 1 52 225514 2026.23 443 427 111.1
D 12 233 195663 1757.51 443 427 111.1
D 2 249 111515 1000.01 443 427 111.1

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