ASTROSAT CZTI

Data Quality Report

Orbit 46683

Creation date: 2024-06-27T23:26:27.890586
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_092T19_9000006252_46683cztM0_level2.fits modeM0/AS1A13_092T19_9000006252_46683cztM0_level2_quad_clean.evt
Size (bytes)635,961,600127,667,520
Size606.5 MB 121.8 MB
Events in quadrant A7,272,711866,374
Events in quadrant B3,940,732863,584
Events in quadrant C3,562,804838,428
Events in quadrant D8,172,757764,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266350
B0171530
C0163480
D0296750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76621622.114330%
B7663871.135326%
C7662340.443748%
D76623674.789872%

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 7662 7662 7 7 0.09% 0.09%
B 7663 7663 38 38 0.50% 0.50%
C 7662 7662 25 25 0.33% 0.33%
D 7662 7662 285 285 3.72% 3.72%

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 3665018 20165.71 866 848 181.7
A 0 247 114781 627.03 866 848 181.7
A 13 248 93581 510.35 866 848 181.7
B 4 171 355329 2089.37 851 824 169.7
B 5 255 71813 418.39 851 824 169.7
B 12 3 40398 233.24 851 824 169.7
C 15 208 144650 720.34 842 847 199.6
C 0 207 46846 230.42 842 847 199.6
C 14 254 38350 187.86 842 847 199.6
D 1 52 4432902 21060.54 834 808 210.4
D 13 249 182936 865.44 834 808 210.4
D 2 249 100321 472.87 834 808 210.4

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