ASTROSAT CZTI

Data Quality Report

Orbit 29165

Creation date: 2024-06-27T20:00:59.855334
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/AS1A10_099T01_9000004184_29165cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29165cztM0_level2_quad_clean.evt
Size (bytes)548,519,04066,703,680
Size523.1 MB 63.6 MB
Events in quadrant A3,641,493397,483
Events in quadrant B3,727,624401,967
Events in quadrant C3,793,494384,753
Events in quadrant D4,996,974369,845

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151762
B0153142
C0155552
D0195482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6675911.363296%
B6675881.318352%
C66751492.232210%
D66752784.164794%

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 7900 6676 0 0 0.00% 0.00%
B 7900 6676 0 0 0.00% 0.00%
C 7900 6676 1 1 0.01% 0.01%
D 7900 6676 167 167 2.11% 2.50%

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 11853 58.57 943 928 186.5
A 3 137 8618 41.23 943 928 186.5
A 0 226 8246 39.24 943 928 186.5
B 0 183 43521 244.54 928 905 174.3
B 0 190 22272 122.61 928 905 174.3
B 12 111 20632 113.2 928 905 174.3
C 14 238 146338 701.54 898 908 207.3
C 3 233 79722 380.19 898 908 207.3
C 14 241 52902 250.82 898 908 207.3
D 1 52 1276200 6079.84 899 878 209.8
D 8 195 294609 1400.3 899 878 209.8
D 2 234 26191 120.67 899 878 209.8

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