ASTROSAT CZTI

Data Quality Report

Orbit 48348

Creation date: 2024-09-05T22:15:42.555015
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/AS1A13_037T05_9000006424_48348cztM0_level2.fits modeM0/AS1A13_037T05_9000006424_48348cztM0_level2_quad_clean.evt
Size (bytes)420,373,440102,277,440
Size400.9 MB 97.5 MB
Events in quadrant A6,654,083668,016
Events in quadrant B2,892,424705,087
Events in quadrant C2,681,577675,961
Events in quadrant D2,846,229610,653

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244421
B0131951
C0128911
D0133011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62593014.809075%
B6260881.405751%
C6260200.319489%
D6260901.437700%

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 6914 6260 32 32 0.46% 0.51%
B 6915 6261 12 12 0.17% 0.19%
C 6915 6261 1 1 0.01% 0.02%
D 6915 6261 34 34 0.49% 0.54%

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 3823619 26404.87 684 667 144.8
A 13 248 167930 1155.27 684 667 144.8
A 13 254 12758 83.51 684 667 144.8
B 4 21 67906 492.44 689 669 136.5
B 0 186 42422 305.8 689 669 136.5
B 0 197 19561 138.36 689 669 136.5
C 3 110 24596 150.01 673 677 159.5
C 1 16 14409 86.12 673 677 159.5
C 12 2 10234 59.94 673 677 159.5
D 2 165 123126 727.11 669 648 168.4
D 2 249 42338 247.5 669 648 168.4
D 2 234 33238 193.48 669 648 168.4

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