ASTROSAT CZTI

Data Quality Report

Orbit 10155

Creation date: 2024-06-27T15:55:42.977208
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/AS1A03_039T01_9000001462_10155cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10155cztM0_level2_quad_clean.evt
Size (bytes)748,869,12059,126,400
Size714.2 MB 56.4 MB
Events in quadrant A2,845,786402,039
Events in quadrant B3,072,761404,987
Events in quadrant C2,807,060409,409
Events in quadrant D13,532,904138,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01304
B01304
C01290
D01304

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013128387
B013424195
C012965213
D0462891948

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6225480.771084%
B6252861.375560%
C6243410.656736%
D6111489080.019637%

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 7264 6288 2 2 0.03% 0.03%
B 7264 6305 24 24 0.33% 0.38%
C 7264 6306 0 0 0.00% 0.00%
D 7264 6113 4806 4806 66.16% 78.62%

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 13 251 20782 136.73 721 704 146.8
A 15 223 18478 121.04 721 704 146.8
A 8 15 11306 72.2 721 704 146.8
B 4 239 143508 1031.0 727 709 138.5
B 0 219 42961 305.06 727 709 138.5
B 0 214 20710 144.41 727 709 138.5
C 14 67 36940 221.13 708 713 163.8
C 14 234 8438 47.15 708 713 163.8
C 13 61 5332 28.19 708 713 163.8
D 1 52 11700727 120831.3 402 390 96.8
D 8 195 167118 1721.83 402 390 96.8
D 12 233 44810 458.73 402 390 96.8

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