ASTROSAT CZTI

Data Quality Report

Orbit 48126

Creation date: 2024-08-22T08:30:37.545832
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_223T01_9000006402_48126cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48126cztM0_level2_quad_clean.evt
Size (bytes)367,220,16078,045,120
Size350.2 MB 74.4 MB
Events in quadrant A6,333,069655,635
Events in quadrant B1,005,12440,439
Events in quadrant C2,622,169652,094
Events in quadrant D3,166,671599,992

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228461
B062641
C0121661
D0136631

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59033105.251567%
B59035903100.000000%
C5904320.542005%
D5904781.321138%

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 7053 5903 112 112 1.59% 1.90%
B 7052 5902 0 0 0.00% 0.00%
C 7054 5904 7 7 0.10% 0.12%
D 7054 5905 64 64 0.91% 1.08%

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 3578178 26651.5 647 633 134.2
A 13 248 202180 1501.46 647 633 134.2
A 7 3 51411 378.28 647 633 134.2
B 2 177 816137 79814.52 41 40 10.2
B 4 171 9912 965.48 41 40 10.2
B 4 21 7309 710.91 41 40 10.2
C 14 254 60546 402.06 640 644 149.0
C 1 16 42760 282.68 640 644 149.0
C 12 2 10154 63.83 640 644 149.0
D 7 67 518439 3279.15 638 617 157.9
D 11 192 49067 306.81 638 617 157.9
D 12 2 37130 231.22 638 617 157.9

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