ASTROSAT CZTI

Data Quality Report

Orbit 43997

Creation date: 2024-06-27T22:58:05.474094
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_034T03_9000005926_43997cztM0_level2.fits modeM0/AS1A13_034T03_9000005926_43997cztM0_level2_quad_clean.evt
Size (bytes)449,809,920110,531,520
Size429.0 MB 105.4 MB
Events in quadrant A5,414,312713,693
Events in quadrant B3,366,081775,638
Events in quadrant C3,491,797736,232
Events in quadrant D3,871,248666,521

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209792
B0142402
C0146462
D0159732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65234707.205274%
B65231742.667484%
C65221342.054584%
D65222033.112542%

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 7603 6524 211 211 2.78% 3.23%
B 7603 6524 29 29 0.38% 0.44%
C 7602 6523 58 58 0.76% 0.89%
D 7602 6523 114 114 1.50% 1.75%

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 1186956 7605.14 748 733 156.0
A 14 238 870974 5579.31 748 733 156.0
A 15 223 439604 2813.7 748 733 156.0
B 5 172 105794 705.62 768 743 148.9
B 15 36 65260 433.36 768 743 148.9
B 0 183 33546 220.34 768 743 148.9
C 14 254 359433 2002.4 761 764 179.1
C 3 233 121908 676.33 761 764 179.1
C 2 14 43322 237.59 761 764 179.1
D 1 52 307703 1584.88 753 725 193.7
D 5 235 262801 1353.06 753 725 193.7
D 13 249 245202 1262.2 753 725 193.7

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