ASTROSAT CZTI

Data Quality Report

Orbit 30472

Creation date: 2024-06-27T20:15:41.553556
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_058T03_9000004380_30472cztM0_level2.evt modeM0/AS1A10_058T03_9000004380_30472cztM0_level2_quad_clean.evt
Size (bytes)591,698,88099,325,440
Size564.3 MB 94.7 MB
Events in quadrant A3,350,878666,711
Events in quadrant B5,310,616660,389
Events in quadrant C4,397,432606,834
Events in quadrant D4,407,318606,889

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142082
B0205622
C0172882
D0174782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6707811.207693%
B67071422.117191%
C67073825.695542%
D67061562.326275%

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 7722 6708 1 1 0.01% 0.01%
B 7722 6708 10 10 0.13% 0.15%
C 7722 6708 193 193 2.50% 2.88%
D 7721 6707 106 106 1.37% 1.58%

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 8 192 23496 131.44 862 848 172.3
A 13 254 12502 67.64 862 848 172.3
A 3 137 8428 43.99 862 848 172.3
B 6 159 1894853 11638.4 845 826 162.7
B 4 171 36451 218.91 845 826 162.7
B 0 229 26313 156.61 845 826 162.7
C 15 208 836391 4512.67 795 801 185.2
C 14 238 146537 787.06 795 801 185.2
C 0 10 126786 680.39 795 801 185.2
D 8 195 517993 2687.78 814 793 192.4
D 13 104 470155 2439.17 814 793 192.4
D 7 238 241843 1252.68 814 793 192.4

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