ASTROSAT CZTI

Data Quality Report

Orbit 19385

Creation date: 2024-06-27T18:02:14.205814
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_104T05_9000002870_19385cztM0_level2.evt modeM0/AS1A05_104T05_9000002870_19385cztM0_level2_quad_clean.evt
Size (bytes)879,526,08097,125,120
Size838.8 MB 92.6 MB
Events in quadrant A3,698,352640,874
Events in quadrant B3,714,294649,851
Events in quadrant C3,693,925630,242
Events in quadrant D15,022,574496,755

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157652
B0158242
C0156982
D0497396

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7511740.985222%
B75111161.544402%
C75111662.210092%
D7511416155.398749%

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 8751 7513 0 0 0.00% 0.00%
B 8751 7513 0 0 0.00% 0.00%
C 8751 7512 0 0 0.00% 0.00%
D 8751 7511 4039 4039 46.15% 53.77%

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 14 111 42180 216.97 942 921 190.2
A 15 174 11368 54.94 942 921 190.2
A 12 96 10832 52.12 942 921 190.2
B 0 198 31269 167.42 938 913 181.3
B 12 111 22556 119.37 938 913 181.3
B 11 111 20037 105.47 938 913 181.3
C 14 238 140637 647.81 909 914 215.7
C 13 61 6343 25.17 909 914 215.7
C 3 233 5044 19.15 909 914 215.7
D 10 66 9550133 54925.37 711 690 173.9
D 7 238 2264740 13022.1 711 690 173.9
D 1 52 444625 2553.37 711 690 173.9

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