ASTROSAT CZTI

Data Quality Report

Orbit 12130

Creation date: 2024-06-27T16:22:48.228653
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/AS1G08_065T01_9000001796_12130cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12130cztM0_level2_quad_clean.evt
Size (bytes)571,187,52089,579,520
Size544.7 MB 85.4 MB
Events in quadrant A4,736,470582,988
Events in quadrant B5,078,534539,139
Events in quadrant C3,197,269586,436
Events in quadrant D3,859,078564,002

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183383
B0193762
C0134912
D0156512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63114146.559975%
B631179912.660434%
C6311891.410236%
D63111692.677864%

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 7577 6313 179 179 2.36% 2.84%
B 7577 6314 415 415 5.48% 6.57%
C 7577 6314 4 4 0.05% 0.06%
D 7577 6314 67 67 0.88% 1.06%

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 13 248 711009 4416.44 817 803 160.8
A 14 63 548432 3405.45 817 803 160.8
A 1 162 135602 838.25 817 803 160.8
B 4 239 1631057 11292.31 778 760 144.4
B 15 204 150960 1040.37 778 760 144.4
B 0 85 111879 769.67 778 760 144.4
C 14 234 10183 50.61 814 819 185.0
C 13 61 6105 28.57 814 819 185.0
C 1 16 3917 16.74 814 819 185.0
D 1 52 287082 1514.4 808 788 189.0
D 14 34 213469 1125.02 808 788 189.0
D 10 50 86735 454.63 808 788 189.0

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