ASTROSAT CZTI

Data Quality Report

Orbit 22069

Creation date: 2024-06-27T18:36:11.216552
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/AS1A07_138T08_9000003268_22069cztM0_level2.evt modeM0/AS1A07_138T08_9000003268_22069cztM0_level2_quad_clean.evt
Size (bytes)414,460,80099,334,080
Size395.3 MB 94.7 MB
Events in quadrant A2,886,886653,403
Events in quadrant B2,955,215665,252
Events in quadrant C3,164,305634,891
Events in quadrant D3,126,542624,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125320
B0126890
C0133210
D0134000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6160260.422078%
B6160380.616883%
C6160741.201299%
D6160330.535714%

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 7160 6161 0 0 0.00% 0.00%
B 7160 6161 1 1 0.01% 0.02%
C 7160 6161 0 0 0.00% 0.00%
D 7160 6161 21 21 0.29% 0.34%

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 13 254 9292 56.73 748 733 150.9
A 3 137 6259 36.63 748 733 150.9
A 0 226 6171 36.04 748 733 150.9
B 12 111 16982 115.24 747 730 141.0
B 11 111 14979 101.03 747 730 141.0
B 14 111 13110 87.78 747 730 141.0
C 9 54 192725 1136.32 729 734 169.0
C 14 238 117398 690.49 729 734 169.0
C 10 22 11151 61.65 729 734 169.0
D 1 52 296623 1659.8 735 713 178.3
D 13 172 28838 157.76 735 713 178.3
D 2 234 24424 133.0 735 713 178.3

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