ASTROSAT CZTI

Data Quality Report

Orbit 07473

Creation date: 2024-06-27T15:20:13.623504
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/AS1G06_116T01_9000001026_07473cztM0_level2.evt modeM0/AS1G06_116T01_9000001026_07473cztM0_level2_quad_clean.evt
Size (bytes)542,822,400149,797,440
Size517.7 MB 142.9 MB
Events in quadrant A3,747,455988,387
Events in quadrant B4,025,0691,010,926
Events in quadrant C3,748,8601,000,608
Events in quadrant D4,347,485953,631

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173213
B0179152
C0173292
D0186982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8411300.356676%
B8411871.034360%
C8411310.368565%
D8411630.749019%

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 9181 8413 0 0 0.00% 0.00%
B 9181 8413 18 18 0.20% 0.21%
C 9181 8413 0 0 0.00% 0.00%
D 9181 8413 45 45 0.49% 0.53%

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 15 234 19997 97.06 962 940 196.3
A 3 1 14539 69.26 962 940 196.3
A 0 226 8949 40.79 962 940 196.3
B 4 81 124662 664.6 976 950 186.1
B 0 214 87900 467.11 976 950 186.1
B 4 173 22816 117.47 976 950 186.1
C 9 68 33517 147.13 948 950 221.4
C 1 16 10243 41.98 948 950 221.4
C 13 61 7392 29.1 948 950 221.4
D 12 221 270502 1168.44 938 906 230.7
D 2 14 235721 1017.7 938 906 230.7
D 2 136 81135 347.72 938 906 230.7

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