ASTROSAT CZTI

Data Quality Report

Orbit 03120

Creation date: 2024-06-27T14:24:54.206000
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_214T01_9000000428_03120cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03120cztM0_level2_common_clean.evt
Size (bytes)1,486,589,760199,932,480
Size1.4 GB 190.7 MB
Events in quadrant A12,543,3501,190,560
Events in quadrant B9,205,6331,193,859
Events in quadrant C12,343,8071,183,487
Events in quadrant D9,617,2891,150,924

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0507515
B0406664
C0501274
D0431314

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03960
B03960
C03960
D03960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1941213376.887492%
B194122811.447558%
C1941210355.331754%
D194123621.864826%

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 21207 19418 793 793 3.74% 4.08%
B 21207 19418 2 2 0.01% 0.01%
C 21207 19418 655 655 3.09% 3.37%
D 21207 19418 99 99 0.47% 0.51%

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 13 3687178 8220.09 2187 2140 448.3
A 14 249 212037 468.21 2187 2140 448.3
A 0 31 63865 137.69 2187 2140 448.3
B 4 81 80243 177.46 2274 2218 439.7
B 15 85 64209 140.99 2274 2218 439.7
B 15 204 63149 138.58 2274 2218 439.7
C 14 223 3320153 6661.16 2134 2140 498.1
C 14 234 249780 497.16 2134 2140 498.1
C 1 192 167343 331.66 2134 2140 498.1
D 13 114 547932 1031.9 2158 2095 529.0
D 13 223 218110 408.38 2158 2095 529.0
D 13 120 216780 405.86 2158 2095 529.0

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
Veto Counter