ASTROSAT CZTI

Data Quality Report

Orbit 06050

Creation date: 2024-06-27T15:02:08.980178
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/AS1A02_090T01_9000000778_06050cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06050cztM0_level2_quad_clean.evt
Size (bytes)441,023,040109,664,640
Size420.6 MB 104.6 MB
Events in quadrant A3,075,690726,248
Events in quadrant B3,508,100746,783
Events in quadrant C3,046,929732,092
Events in quadrant D3,301,322680,417

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131025
B0144462
C0130834
D0140062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6249200.320051%
B62501001.600000%
C6249170.272044%
D62501131.808000%

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 7605 6251 0 0 0.00% 0.00%
B 7605 6251 35 35 0.46% 0.56%
C 7605 6251 0 0 0.00% 0.00%
D 7605 6251 80 80 1.05% 1.28%

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 8 15 19025 112.52 790 777 162.2
A 0 254 9022 50.84 790 777 162.2
A 0 226 7617 42.18 790 777 162.2
B 3 64 265930 1730.96 805 790 153.2
B 0 214 34922 222.83 805 790 153.2
B 15 204 27751 176.01 805 790 153.2
C 1 16 28066 151.78 774 781 179.8
C 13 61 6239 30.36 774 781 179.8
C 8 79 2535 9.76 774 781 179.8
D 13 169 206154 1094.6 758 736 187.7
D 5 97 80513 425.1 758 736 187.7
D 2 33 47975 251.72 758 736 187.7

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