ASTROSAT CZTI

Data Quality Report

Orbit 47472

Creation date: 2024-07-09T08:50:58.742008
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_089T01_9000006330_47472cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47472cztM0_level2_quad_clean.evt
Size (bytes)566,104,32091,751,040
Size539.9 MB 87.5 MB
Events in quadrant A6,430,915635,524
Events in quadrant B3,431,811653,648
Events in quadrant C2,737,027636,286
Events in quadrant D7,893,759436,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232081
B0142101
C0123422
D0275291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59592674.480618%
B59602083.489933%
C5959490.822286%
D5959175429.434469%

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 6984 5960 29 29 0.42% 0.49%
B 6985 5961 88 88 1.26% 1.48%
C 6984 5960 3 3 0.04% 0.05%
D 6984 5960 1531 1531 21.92% 25.69%

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 3557846 25605.53 662 648 138.9
A 9 191 278477 1999.88 662 648 138.9
A 13 248 34546 244.01 662 648 138.9
B 5 32 549900 4228.41 660 639 129.9
B 0 198 96525 738.16 660 639 129.9
B 0 190 68462 522.12 660 639 129.9
C 3 233 74724 474.75 658 660 156.0
C 14 254 34391 216.22 658 660 156.0
C 6 247 21100 131.02 658 660 156.0
D 6 112 4728818 31699.32 592 573 149.2
D 14 34 399487 2674.42 592 573 149.2
D 12 233 133233 889.39 592 573 149.2

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