ASTROSAT CZTI

Data Quality Report

Orbit 09792

Creation date: 2024-06-27T15:50:43.277714
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/AS1G05_218T01_9000001394_09792cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09792cztM0_level2_quad_clean.evt
Size (bytes)125,737,92013,553,280
Size119.9 MB 12.9 MB
Events in quadrant A863,96969,882
Events in quadrant B911,67270,829
Events in quadrant C844,19267,214
Events in quadrant D1,058,82365,859

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382
B0382
C0380
D0382

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382783
B0391376
C0382894
D04494135

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186710.053562%
B187030.160428%
C186100.000000%
D1854211.132686%

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 1908 1906 0 0 0.00% 0.00%
B 1908 1903 0 0 0.00% 0.00%
C 1908 1907 0 0 0.00% 0.00%
D 1908 1905 16 16 0.84% 0.84%

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 0 226 2059 38.33 224 219 48.0
A 12 194 1864 34.27 224 219 48.0
A 13 253 1376 24.1 224 219 48.0
B 0 214 13812 299.22 224 218 45.4
B 4 239 12329 266.58 224 218 45.4
B 10 245 5672 120.05 224 218 45.4
C 8 128 4545 83.91 213 213 51.6
C 14 234 2935 52.73 213 213 51.6
C 8 112 2107 36.69 213 213 51.6
D 2 152 149559 2658.97 213 206 56.2
D 8 195 23696 418.19 213 206 56.2
D 7 71 22750 401.35 213 206 56.2

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