ASTROSAT CZTI

Data Quality Report

Orbit 44447

Creation date: 2024-06-27T23:03:40.170640
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_072T03_9000006000_44447cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44447cztM0_level2_quad_clean.evt
Size (bytes)544,838,400108,331,200
Size519.6 MB 103.3 MB
Events in quadrant A4,978,156747,995
Events in quadrant B3,533,086772,966
Events in quadrant C3,247,711741,859
Events in quadrant D7,874,723537,772

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210423
B0150472
C0144562
D0280562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68802393.473837%
B68812243.255341%
C68811111.613138%
D6881163323.732016%

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 7705 6881 8 8 0.10% 0.12%
B 7706 6882 32 32 0.42% 0.46%
C 7706 6882 9 9 0.12% 0.13%
D 7706 6882 1260 1260 16.35% 18.31%

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 1833010 11062.41 796 780 165.6
A 10 248 51312 305.1 796 780 165.6
A 8 4 11852 66.85 796 780 165.6
B 5 172 282771 1804.39 787 762 156.3
B 0 229 50911 320.87 787 762 156.3
B 0 168 42525 267.21 787 762 156.3
C 14 254 105381 567.09 784 787 184.4
C 2 14 56349 301.24 784 787 184.4
C 3 233 30040 158.6 784 787 184.4
D 5 235 2250853 12447.08 713 690 180.8
D 13 249 1554458 8594.88 713 690 180.8
D 2 249 396581 2189.92 713 690 180.8

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