ASTROSAT CZTI

Data Quality Report

Orbit 05211

Creation date: 2024-06-27T14:52:48.416195
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/AS1T01_136T01_9000000662_05211cztM0_level2.evt modeM0/AS1T01_136T01_9000000662_05211cztM0_level2_quad_clean.evt
Size (bytes)454,512,96078,076,800
Size433.5 MB 74.5 MB
Events in quadrant A2,960,848484,294
Events in quadrant B3,137,868492,039
Events in quadrant C3,275,668489,142
Events in quadrant D3,963,018459,686

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01282

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01302810
B0134037
C01374514
D01606614

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6293420.667408%
B6294570.905624%
C6292300.476796%
D62903675.834658%

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 7581 6298 14 14 0.18% 0.22%
B 7581 6298 15 15 0.20% 0.24%
C 7581 6298 0 0 0.00% 0.00%
D 7581 6297 171 171 2.26% 2.72%

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 0 50 54293 349.05 754 737 153.4
A 12 194 7426 43.59 754 737 153.4
A 0 226 7336 43.01 754 737 153.4
B 4 48 125889 865.66 765 746 144.6
B 4 80 22034 147.26 765 746 144.6
B 12 111 13120 85.6 765 746 144.6
C 1 16 329971 1885.04 754 759 174.6
C 13 61 6099 30.58 754 759 174.6
C 12 4 3901 17.99 754 759 174.6
D 1 239 941111 5307.63 729 708 177.2
D 1 31 133655 750.35 729 708 177.2
D 2 136 51639 287.45 729 708 177.2

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