ASTROSAT CZTI

Data Quality Report

Orbit 47721

Creation date: 2024-07-25T14:30:22.521754
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/AS1T05_213T01_9000006344_47721cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47721cztM0_level2_quad_clean.evt
Size (bytes)534,219,840109,195,200
Size509.5 MB 104.1 MB
Events in quadrant A6,748,254731,130
Events in quadrant B5,114,907707,879
Events in quadrant C3,013,728752,716
Events in quadrant D4,394,878661,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02483927
B0195058
C0135289
D0174722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64873435.287498%
B649073511.325116%
C64911201.848714%
D64944356.698491%

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 8753 6493 27 27 0.31% 0.42%
B 8754 6492 474 474 5.41% 7.30%
C 8754 6494 4 4 0.05% 0.06%
D 8754 6494 265 265 3.03% 4.08%

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 10 83 3778449 24223.55 752 735 156.0
A 9 191 59721 378.23 752 735 156.0
A 3 137 8344 48.79 752 735 156.0
B 5 32 750857 5386.79 727 704 139.3
B 5 255 719337 5160.44 727 704 139.3
B 0 186 447476 3208.23 727 704 139.3
C 14 254 47535 263.38 758 761 177.6
C 5 4 6801 34.01 758 761 177.6
C 13 61 4965 23.67 758 761 177.6
D 2 165 904309 4908.19 744 718 184.1
D 12 2 211145 1143.01 744 718 184.1
D 12 238 86600 466.5 744 718 184.1

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