ASTROSAT CZTI

Data Quality Report

Orbit 04285

Creation date: 2024-06-27T14:39:48.987795
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/AS1G05_240T01_9000000536_04285cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04285cztM0_level2_quad_clean.evt
Size (bytes)465,410,88059,670,720
Size443.9 MB 56.9 MB
Events in quadrant A3,118,008367,240
Events in quadrant B2,901,682370,571
Events in quadrant C2,479,270359,917
Events in quadrant D5,233,809334,790

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126162
B0119182
C0109402
D0192962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53281643.078078%
B5328911.707958%
C5328360.675676%
D53283085.780781%

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 6603 5328 71 71 1.08% 1.33%
B 6603 5328 2 2 0.03% 0.04%
C 6603 5329 0 0 0.00% 0.00%
D 6603 5328 203 203 3.07% 3.81%

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 8 15 273720 2030.65 660 647 134.5
A 13 248 214778 1592.34 660 647 134.5
A 0 50 53463 392.75 660 647 134.5
B 15 204 141664 1100.59 666 651 128.1
B 14 167 63314 489.08 666 651 128.1
B 3 0 45527 350.25 666 651 128.1
C 10 65 6801 41.86 632 634 147.3
C 13 61 5232 31.21 632 634 147.3
C 12 4 2186 10.54 632 634 147.3
D 11 132 1275819 8427.65 627 609 151.3
D 2 232 1119273 7393.06 627 609 151.3
D 13 239 297468 1961.89 627 609 151.3

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