ASTROSAT CZTI

Data Quality Report

Orbit 28353

Creation date: 2024-06-27T19:50:49.391750
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_116T01_9000004082_28353cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28353cztM0_level2_quad_clean.evt
Size (bytes)488,698,56092,894,400
Size466.1 MB 88.6 MB
Events in quadrant A3,596,964610,410
Events in quadrant B3,129,485629,014
Events in quadrant C2,954,268585,426
Events in quadrant D4,703,442559,952

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146870
B0131370
C0127820
D0180540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61342303.749592%
B6135681.108394%
C6135851.385493%
D61352934.775876%

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 7209 6134 160 160 2.22% 2.61%
B 7210 6135 2 2 0.03% 0.03%
C 7210 6136 0 0 0.00% 0.00%
D 7210 6135 198 198 2.75% 3.23%

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 15 174 639415 4135.65 766 751 154.4
A 13 254 10391 62.42 766 751 154.4
A 3 137 7516 43.81 766 751 154.4
B 10 245 82228 549.96 765 744 148.2
B 0 230 27293 179.18 765 744 148.2
B 12 111 18422 119.31 765 744 148.2
C 14 238 119205 694.34 726 729 170.6
C 13 61 5010 25.09 726 729 170.6
C 0 10 3125 14.04 726 729 170.6
D 1 52 1299912 7444.39 724 704 174.5
D 8 195 511355 2926.0 724 704 174.5
D 2 250 94540 537.67 724 704 174.5

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