ASTROSAT CZTI

Data Quality Report

Orbit 04383

Creation date: 2024-06-27T14:41:14.699338
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/AS1G05_167T02_9000000546_04383cztM0_level2.evt modeM0/AS1G05_167T02_9000000546_04383cztM0_level2_quad_clean.evt
Size (bytes)426,044,16066,962,880
Size406.3 MB 63.9 MB
Events in quadrant A3,100,261395,866
Events in quadrant B3,160,111405,192
Events in quadrant C3,074,872398,294
Events in quadrant D3,128,316377,694

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134483
B0135152
C0135012
D0140352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462380.588053%
B6462530.820180%
C6462250.386877%
D6462560.866605%

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 7612 6463 8 8 0.11% 0.12%
B 7612 6463 18 18 0.24% 0.28%
C 7612 6463 6 6 0.08% 0.09%
D 7612 6463 62 62 0.81% 0.96%

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 15 234 43651 272.88 775 760 157.2
A 13 251 42555 265.91 775 760 157.2
A 8 15 22410 137.74 775 760 157.2
B 5 200 111691 740.95 783 767 149.7
B 14 167 15300 97.08 783 767 149.7
B 12 111 14293 90.35 783 767 149.7
C 9 247 92388 523.36 749 754 175.1
C 14 48 38316 214.53 749 754 175.1
C 9 16 16925 92.36 749 754 175.1
D 13 239 103516 573.87 738 717 179.1
D 13 112 64696 357.16 738 717 179.1
D 2 37 55613 306.45 738 717 179.1

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