ASTROSAT CZTI

Data Quality Report

Orbit 45647

Creation date: 2024-06-27T23:14:32.012707
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_071T07_9000006116_45647cztM0_level2.fits modeM0/AS1A13_071T07_9000006116_45647cztM0_level2_quad_clean.evt
Size (bytes)528,704,640100,641,600
Size504.2 MB 96.0 MB
Events in quadrant A5,236,384700,000
Events in quadrant B4,181,555676,231
Events in quadrant C3,086,571692,313
Events in quadrant D6,610,203567,820

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189961
B0162051
C0132851
D0237691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58811672.839653%
B58825158.755525%
C58821452.465148%
D588286014.620877%

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 7056 5881 4 4 0.06% 0.07%
B 7057 5882 335 335 4.75% 5.70%
C 7057 5882 74 74 1.05% 1.26%
D 7057 5883 687 687 9.74% 11.68%

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 2519708 17908.59 686 673 140.7
A 10 248 26996 187.14 686 673 140.7
A 0 243 14944 101.46 686 673 140.7
B 3 112 1111389 8747.11 665 647 127.0
B 5 32 157884 1238.24 665 647 127.0
B 5 172 73577 574.32 665 647 127.0
C 14 254 463233 2985.52 668 672 154.9
C 0 64 6656 38.62 668 672 154.9
C 2 14 4733 26.21 668 672 154.9
D 8 129 1364378 8502.79 640 619 160.4
D 11 241 1187247 7398.41 640 619 160.4
D 13 249 369190 2297.97 640 619 160.4

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