ASTROSAT CZTI

Data Quality Report

Orbit 09569

Creation date: 2024-06-27T15:47:51.170867
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/AS1G07_027T01_9000001358_09569cztM0_level2.evt modeM0/AS1G07_027T01_9000001358_09569cztM0_level2_quad_clean.evt
Size (bytes)452,171,52096,413,760
Size431.2 MB 91.9 MB
Events in quadrant A3,699,470626,142
Events in quadrant B3,229,655632,007
Events in quadrant C3,127,682621,369
Events in quadrant D3,213,682605,682

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241
B0240
C0240
D0241

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015751651
B013855462
C013532432
D013935454

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01344
B01346
C01346
D01335

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62082303.704897%
B62301632.616372%
C62391402.243949%
D62291562.504415%

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 8867 6283 2 2 0.02% 0.03%
B 8867 6305 0 0 0.00% 0.00%
C 8867 6317 1 1 0.01% 0.02%
D 8867 6318 14 14 0.16% 0.22%

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 1 162 237444 1439.85 809 794 164.4
A 1 178 118707 717.42 809 794 164.4
A 1 161 113116 683.4 809 794 164.4
B 4 80 49829 318.52 810 791 154.0
B 12 111 17030 105.48 810 791 154.0
B 11 111 13696 83.82 810 791 154.0
C 9 236 31430 167.45 794 801 182.9
C 13 61 5763 27.13 794 801 182.9
C 14 234 2342 8.42 794 801 182.9
D 1 52 92060 478.37 792 775 190.8
D 7 71 46577 240.02 792 775 190.8
D 12 233 28513 145.36 792 775 190.8

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