ASTROSAT CZTI

Data Quality Report

Orbit 10783

Creation date: 2024-06-27T16:03:49.103637
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/AS1C02_045T03_9000001558_10783cztM0_level2.evt modeM0/AS1C02_045T03_9000001558_10783cztM0_level2_quad_clean.evt
Size (bytes)527,166,720126,544,320
Size502.7 MB 120.7 MB
Events in quadrant A3,261,584867,464
Events in quadrant B4,523,619864,149
Events in quadrant C2,902,413872,570
Events in quadrant D4,853,766792,314

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137872
B0176121
C0128101
D0186861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62401512.419872%
B62404907.852564%
C6240641.025641%
D62405759.214744%

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 7530 6241 45 45 0.60% 0.72%
B 7530 6241 287 287 3.81% 4.60%
C 7530 6241 0 0 0.00% 0.00%
D 7530 6241 397 397 5.27% 6.36%

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 15 174 234496 1531.41 770 757 152.6
A 1 162 28267 180.24 770 757 152.6
A 1 161 10621 64.63 770 757 152.6
B 4 239 1361583 9726.62 758 741 139.9
B 15 204 123636 878.39 758 741 139.9
B 0 219 42488 298.38 758 741 139.9
C 13 61 5612 29.02 742 747 167.6
C 8 222 3988 19.33 742 747 167.6
C 14 67 2038 7.7 742 747 167.6
D 13 104 617209 3680.03 712 694 167.5
D 10 199 494440 2947.21 712 694 167.5
D 1 52 273662 1629.37 712 694 167.5

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