ASTROSAT CZTI

Data Quality Report

Orbit 42190

Creation date: 2024-06-27T22:38:19.528435
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/AS1A12_088T25_9000005770_42190cztM0_level2.fits modeM0/AS1A12_088T25_9000005770_42190cztM0_level2_quad_clean.evt
Size (bytes)355,795,20095,927,040
Size339.3 MB 91.5 MB
Events in quadrant A3,334,293639,379
Events in quadrant B3,380,115653,785
Events in quadrant C2,755,935625,720
Events in quadrant D3,233,687566,553

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135282
B0141162
C0120462
D0140682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5992320.534045%
B59921141.902537%
C599250.083445%
D59911101.836087%

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 8679 5994 18 18 0.21% 0.30%
B 8679 5994 80 80 0.92% 1.33%
C 8679 5994 0 0 0.00% 0.00%
D 8678 5993 107 107 1.23% 1.79%

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 587898 4372.87 651 636 134.3
A 13 248 127736 946.41 651 636 134.3
A 15 223 83464 616.75 651 636 134.3
B 5 255 733022 5781.45 645 628 126.7
B 0 156 50412 392.99 645 628 126.7
B 0 229 41523 322.82 645 628 126.7
C 15 214 253287 1699.33 634 637 148.7
C 15 159 17034 110.28 634 637 148.7
C 0 207 6735 41.01 634 637 148.7
D 1 52 278039 1809.12 625 606 153.4
D 12 6 234097 1522.58 625 606 153.4
D 7 55 77483 501.31 625 606 153.4

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