ASTROSAT CZTI

Data Quality Report

Orbit 04829

Creation date: 2024-06-27T14:47:36.868579
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_253T02_9000000614_04829cztM0_level2.evt modeM0/AS1G05_253T02_9000000614_04829cztM0_level2_quad_clean.evt
Size (bytes)517,155,84072,279,360
Size493.2 MB 68.9 MB
Events in quadrant A3,258,168433,523
Events in quadrant B4,657,512428,014
Events in quadrant C3,557,007438,839
Events in quadrant D3,728,518414,845

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141613
B0182022
C0152352
D0156752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67901131.664212%
B67903054.491900%
C67901061.561119%
D67902283.357879%

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 7720 6790 11 11 0.14% 0.16%
B 7720 6790 142 142 1.84% 2.09%
C 7720 6790 13 13 0.17% 0.19%
D 7720 6790 118 118 1.53% 1.74%

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 15 97922 587.63 800 781 165.3
A 0 50 42957 255.13 800 781 165.3
A 13 251 22128 129.13 800 781 165.3
B 14 167 1075016 6919.3 801 780 155.3
B 10 16 324149 2082.86 801 780 155.3
B 15 204 65209 415.0 801 780 155.3
C 8 208 437656 2392.63 779 784 182.6
C 9 247 65730 355.69 779 784 182.6
C 12 4 11964 61.23 779 784 182.6
D 2 136 359490 1922.74 770 748 186.6
D 13 235 154267 822.81 770 748 186.6
D 10 15 122141 650.63 770 748 186.6

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