ASTROSAT CZTI

Data Quality Report

Orbit 21606

Creation date: 2024-06-27T18:30:08.220440
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_094T01_9000003204_21606cztM0_level2.evt modeM0/AS1A05_094T01_9000003204_21606cztM0_level2_quad_clean.evt
Size (bytes)486,054,72088,200,000
Size463.5 MB 84.1 MB
Events in quadrant A3,204,765558,596
Events in quadrant B3,325,758566,110
Events in quadrant C3,250,648555,101
Events in quadrant D4,491,258531,264

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138772
B0142252
C0140372
D0179242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6594590.894753%
B6594630.955414%
C6594921.395208%
D65942754.170458%

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 7669 6595 3 3 0.04% 0.05%
B 7669 6595 3 3 0.04% 0.05%
C 7669 6595 0 0 0.00% 0.00%
D 7669 6595 171 171 2.23% 2.59%

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 15 174 23496 137.45 823 806 165.1
A 13 254 9510 52.73 823 806 165.1
A 0 226 7237 38.96 823 806 165.1
B 3 64 31400 195.55 825 802 156.5
B 0 190 22146 136.41 825 802 156.5
B 0 229 19082 116.83 825 802 156.5
C 14 238 124300 656.34 801 808 188.2
C 13 61 5546 25.18 801 808 188.2
C 7 221 2898 11.11 801 808 188.2
D 1 52 810268 4196.77 794 772 192.9
D 5 222 367230 1899.87 794 772 192.9
D 14 35 95602 491.64 794 772 192.9

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