ASTROSAT CZTI

Data Quality Report

Orbit 19178

Creation date: 2024-06-27T17:59:48.292719
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_046T01_9000002838_19178cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19178cztM0_level2_quad_clean.evt
Size (bytes)474,920,640101,661,120
Size452.9 MB 97.0 MB
Events in quadrant A3,209,654663,994
Events in quadrant B3,340,145692,994
Events in quadrant C3,681,404658,404
Events in quadrant D3,734,388633,889

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134151
B0137772
C0149151
D0152191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6151460.747846%
B6150701.138211%
C6150931.512195%
D61501181.918699%

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 7481 6152 0 0 0.00% 0.00%
B 7480 6151 8 8 0.11% 0.13%
C 7480 6151 0 0 0.00% 0.00%
D 7479 6150 53 53 0.71% 0.86%

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 14 235 34340 203.21 821 805 165.0
A 13 254 8514 46.71 821 805 165.0
A 0 226 7292 39.31 821 805 165.0
B 6 36 44895 287.27 830 813 153.5
B 12 111 17889 111.28 830 813 153.5
B 11 111 15535 95.94 830 813 153.5
C 3 233 436893 2355.57 797 805 185.1
C 14 238 125609 674.14 797 805 185.1
C 0 207 11367 57.05 797 805 185.1
D 10 66 487655 2539.87 797 775 191.7
D 1 52 116678 604.62 797 775 191.7
D 11 176 83630 432.22 797 775 191.7

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