ASTROSAT CZTI

Data Quality Report

Orbit 19076

Creation date: 2024-06-27T17:58:47.391169
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/AS1A05_046T01_9000002834_19076cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19076cztM0_level2_quad_clean.evt
Size (bytes)733,193,28098,478,720
Size699.2 MB 93.9 MB
Events in quadrant A3,209,965699,131
Events in quadrant B3,355,186728,137
Events in quadrant C3,213,051699,145
Events in quadrant D12,008,868423,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134422
B0138732
C0133522
D0399772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6175480.777328%
B6175661.068826%
C6175681.101215%
D6175361358.510121%

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 7480 6176 9 9 0.12% 0.15%
B 7480 6176 11 11 0.15% 0.18%
C 7480 6176 0 0 0.00% 0.00%
D 7479 6175 3128 3128 41.82% 50.66%

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 9 143 119381 734.2 802 785 161.5
A 13 254 8910 50.3 802 785 161.5
A 0 226 6888 37.78 802 785 161.5
B 3 112 67086 437.1 812 793 151.7
B 0 189 59167 384.89 812 793 151.7
B 0 198 22660 144.18 812 793 151.7
C 14 238 124629 677.52 787 795 182.8
C 3 233 17331 90.47 787 795 182.8
C 13 61 5467 25.56 787 795 182.8
D 7 238 7894741 58777.28 553 538 134.3
D 1 52 1557455 11592.22 553 538 134.3
D 12 218 312747 2324.59 553 538 134.3

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