ASTROSAT CZTI

Data Quality Report

Orbit 47030

Creation date: 2024-06-27T23:30:57.734777
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/AS1C09_005T01_9000006296_47030cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47030cztM0_level2_quad_clean.evt
Size (bytes)693,149,760114,223,680
Size661.0 MB 108.9 MB
Events in quadrant A7,540,004828,656
Events in quadrant B10,055,683521,244
Events in quadrant C3,451,148817,255
Events in quadrant D4,008,716750,690

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276494
B0352261
C0162711
D0177251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77692272.921869%
B7769298238.383318%
C7770350.450450%
D77701171.505792%

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 7769 7769 2 2 0.03% 0.03%
B 7769 7769 2269 2269 29.21% 29.21%
C 7770 7770 19 19 0.24% 0.24%
D 7770 7770 69 69 0.89% 0.89%

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 10 83 4055836 22450.34 866 847 180.6
A 9 191 93175 511.17 866 847 180.6
A 0 243 25516 136.58 866 847 180.6
B 3 112 4648105 34604.57 683 663 134.3
B 15 201 1739944 12950.58 683 663 134.3
B 4 171 768332 5716.02 683 663 134.3
C 14 254 139848 697.19 846 851 199.4
C 12 250 6271 27.19 846 851 199.4
C 13 61 5730 24.47 846 851 199.4
D 12 233 257213 1211.05 844 817 211.7
D 1 52 200952 945.31 844 817 211.7
D 13 249 90643 424.28 844 817 211.7

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