ASTROSAT CZTI

Data Quality Report

Orbit 30467

Creation date: 2024-06-27T20:15:37.673419
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/AS1A10_058T03_9000004380_30467cztM0_level2.evt modeM0/AS1A10_058T03_9000004380_30467cztM0_level2_quad_clean.evt
Size (bytes)583,272,00096,998,400
Size556.3 MB 92.5 MB
Events in quadrant A3,562,404630,376
Events in quadrant B5,432,764628,381
Events in quadrant C4,372,884601,075
Events in quadrant D3,831,295598,942

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149512
B0209472
C0174442
D0156352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68681001.456028%
B68681482.154921%
C68683495.081538%
D6869650.946280%

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 8998 6869 1 1 0.01% 0.01%
B 8998 6869 2 2 0.02% 0.03%
C 8998 6869 67 67 0.74% 0.98%
D 8999 6870 4 4 0.04% 0.06%

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 8 192 24794 130.73 916 898 182.8
A 13 254 12093 61.25 916 898 182.8
A 3 137 8881 43.67 916 898 182.8
B 6 159 1872678 10937.73 899 878 171.1
B 0 229 23164 130.23 899 878 171.1
B 12 111 20869 116.82 899 878 171.1
C 3 233 351790 1759.81 862 869 199.4
C 15 208 344268 1722.09 862 869 199.4
C 14 238 144667 721.12 862 869 199.4
D 13 104 276663 1311.15 887 866 210.3
D 8 195 139275 658.0 887 866 210.3
D 2 250 29904 138.05 887 866 210.3

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