ASTROSAT CZTI

Data Quality Report

Orbit 13042

Creation date: 2024-06-27T16:35:23.637354
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/AS1A04_216T01_9000001916_13042cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13042cztM0_level2_quad_clean.evt
Size (bytes)527,296,32092,571,840
Size502.9 MB 88.3 MB
Events in quadrant A3,197,454608,168
Events in quadrant B5,580,205579,565
Events in quadrant C2,866,973618,535
Events in quadrant D3,921,219581,473

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130712
B0203531
C0122231
D0154821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5951921.545959%
B5951110718.601916%
C5951671.125861%
D59511191.999664%

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 7187 5953 10 10 0.14% 0.17%
B 7187 5953 694 694 9.66% 11.66%
C 7187 5953 0 0 0.00% 0.00%
D 7187 5953 72 72 1.00% 1.21%

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 8 15 163354 1106.92 735 719 146.9
A 12 189 72595 489.2 735 719 146.9
A 1 162 46672 312.76 735 719 146.9
B 4 239 1916466 15200.99 676 660 126.0
B 3 64 933406 7400.89 676 660 126.0
B 0 214 27821 215.51 676 660 126.0
C 13 61 5241 26.96 733 737 167.0
C 14 234 4356 21.66 733 737 167.0
C 1 5 3492 16.49 733 737 167.0
D 8 195 721786 4219.53 723 704 170.9
D 1 52 449537 2626.42 723 704 170.9
D 2 234 19063 107.43 723 704 170.9

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