ASTROSAT CZTI

Data Quality Report

Orbit 13561

Creation date: 2024-06-27T16:42:40.605369
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/AS1A04_180T01_9000002000_13561cztM0_level2.evt modeM0/AS1A04_180T01_9000002000_13561cztM0_level2_quad_clean.evt
Size (bytes)443,246,40080,988,480
Size422.7 MB 77.2 MB
Events in quadrant A2,873,414527,022
Events in quadrant B3,005,559530,454
Events in quadrant C2,993,434519,011
Events in quadrant D4,168,655481,801

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118102
B0121541
C0120411
D0159791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5630490.870337%
B5630721.278863%
C5630370.657194%
D56304057.193606%

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 6891 5631 0 0 0.00% 0.00%
B 6891 5631 8 8 0.12% 0.14%
C 6891 5631 0 0 0.00% 0.00%
D 6891 5631 337 337 4.89% 5.98%

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 1 162 18500 118.84 738 727 149.6
A 0 226 6769 40.4 738 727 149.6
A 1 178 5887 34.5 738 727 149.6
B 3 64 41326 291.43 728 712 139.4
B 0 189 30786 215.8 728 712 139.4
B 3 209 28569 199.89 728 712 139.4
C 3 233 238392 1466.66 705 711 162.1
C 13 61 5043 26.73 705 711 162.1
C 14 234 4022 20.43 705 711 162.1
D 5 222 858857 5133.68 692 675 167.2
D 13 122 227682 1357.97 692 675 167.2
D 2 14 187367 1116.8 692 675 167.2

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