ASTROSAT CZTI

Data Quality Report

Orbit 15086

Creation date: 2024-06-27T17:03:33.074129
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/AS1T02_065T01_9000002218_15086cztM0_level2.evt modeM0/AS1T02_065T01_9000002218_15086cztM0_level2_quad_clean.evt
Size (bytes)528,451,20082,454,400
Size504.0 MB 78.6 MB
Events in quadrant A3,699,769499,125
Events in quadrant B4,025,428500,787
Events in quadrant C4,101,282485,637
Events in quadrant D3,651,133472,085

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161063
B0167672
C0164862
D0164242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77542793.598143%
B77543444.436420%
C77542282.940418%
D77542673.443384%

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 7910 7755 0 0 0.00% 0.00%
B 7910 7755 29 29 0.37% 0.37%
C 7910 7756 0 0 0.00% 0.00%
D 7910 7755 38 38 0.48% 0.49%

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 12 189 41084 205.58 952 929 195.3
A 0 226 8332 37.9 952 929 195.3
A 12 194 6915 30.65 952 929 195.3
B 10 245 179760 974.97 945 919 183.4
B 3 64 68952 370.89 945 919 183.4
B 0 214 30000 158.54 945 919 183.4
C 3 233 495445 2297.52 922 925 215.2
C 13 61 6720 26.92 922 925 215.2
C 7 220 5422 20.89 922 925 215.2
D 10 70 100976 443.53 920 890 225.7
D 2 234 26792 114.78 920 890 225.7
D 2 120 21775 92.55 920 890 225.7

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