ASTROSAT CZTI

Data Quality Report

Orbit 24168

Creation date: 2024-06-27T19:03:01.644550
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/AS1A07_067T01_9000003578_24168cztM0_level2.evt modeM0/AS1A07_067T01_9000003578_24168cztM0_level2_quad_clean.evt
Size (bytes)728,893,44092,157,120
Size695.1 MB 87.9 MB
Events in quadrant A3,053,445644,429
Events in quadrant B3,121,736667,660
Events in quadrant C3,125,386640,000
Events in quadrant D12,333,277383,283

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133521
B0135041
C0135361
D0411871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6500200.307692%
B6501380.584525%
C6501681.045993%
D6501380258.483310%

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 7555 6501 0 0 0.00% 0.00%
B 7556 6502 0 0 0.00% 0.00%
C 7556 6502 0 0 0.00% 0.00%
D 7556 6501 3549 3549 46.97% 54.59%

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 13 254 10309 60.05 790 773 158.8
A 3 1 6748 37.63 790 773 158.8
A 0 226 6745 37.61 790 773 158.8
B 12 111 18440 117.29 795 775 150.6
B 11 111 15908 100.48 795 775 150.6
B 14 111 14019 87.94 795 775 150.6
C 14 238 121742 675.5 767 773 179.1
C 3 233 7480 37.45 767 773 179.1
C 13 61 5269 25.11 767 773 179.1
D 7 238 9921154 71816.53 567 550 138.1
D 8 195 214297 1547.34 567 550 138.1
D 1 52 45103 322.52 567 550 138.1

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