ASTROSAT CZTI

Data Quality Report

Orbit 32262

Creation date: 2024-06-27T20:38:12.713973
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/AS1A09_131T01_9000004696_32262cztM0_level2.evt modeM0/AS1A09_131T01_9000004696_32262cztM0_level2_quad_clean.evt
Size (bytes)573,255,36083,410,560
Size546.7 MB 79.5 MB
Events in quadrant A3,033,822532,727
Events in quadrant B5,217,056530,605
Events in quadrant C3,342,429529,962
Events in quadrant D5,349,771501,235

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130931
B0200331
C0139861
D0201231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6175260.421053%
B61761432.315415%
C61761512.444948%
D61765779.342617%

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 7305 6176 0 0 0.00% 0.00%
B 7306 6177 39 39 0.53% 0.63%
C 7306 6177 30 30 0.41% 0.49%
D 7306 6177 363 363 4.97% 5.88%

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 0 6 17924 110.86 773 758 154.8
A 13 6 14239 87.06 773 758 154.8
A 13 254 12763 77.53 773 758 154.8
B 6 159 1949651 13530.91 765 746 144.0
B 5 172 192224 1329.4 765 746 144.0
B 0 230 18718 124.78 765 746 144.0
C 0 10 183545 1048.44 750 754 174.3
C 14 238 128836 734.64 750 754 174.3
C 4 175 39948 224.81 750 754 174.3
D 8 195 836552 4829.94 729 709 173.1
D 13 249 522375 3014.46 729 709 173.1
D 12 218 403839 2329.5 729 709 173.1

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