ASTROSAT CZTI

Data Quality Report

Orbit 05378

Creation date: 2024-06-27T14:54:32.382186
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/AS1G05_021T02_9000000680_05378cztM0_level2.evt modeM0/AS1G05_021T02_9000000680_05378cztM0_level2_quad_clean.evt
Size (bytes)1,204,295,040186,626,880
Size1.1 GB 178.0 MB
Events in quadrant A8,390,5551,135,191
Events in quadrant B8,232,5941,151,651
Events in quadrant C8,062,7601,157,809
Events in quadrant D10,622,2151,020,970

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03713728
B0359289
C03538518
D04401742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500
B03500
C03500
D03500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A171973592.087573%
B172062531.470417%
C172021971.145216%
D1719714068.175845%

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 18899 17209 114 114 0.60% 0.66%
B 18899 17209 14 14 0.07% 0.08%
C 18899 17209 0 0 0.00% 0.00%
D 18898 17206 1170 1170 6.19% 6.80%

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 15 174 663646 1641.9 1969 1928 403.0
A 0 50 130881 319.97 1969 1928 403.0
A 0 226 20230 45.41 1969 1928 403.0
B 4 80 128936 328.88 2001 1951 386.1
B 15 204 109336 278.11 2001 1951 386.1
B 10 245 67388 169.47 2001 1951 386.1
C 1 16 541381 1210.93 1922 1934 445.5
C 13 61 15567 30.6 1922 1934 445.5
C 12 4 12975 24.78 1922 1934 445.5
D 7 237 2759598 6187.79 1825 1765 445.7
D 2 136 306115 682.87 1825 1765 445.7
D 2 234 220071 489.82 1825 1765 445.7

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