ASTROSAT CZTI

Data Quality Report

Orbit 10824

Creation date: 2024-06-27T16:04:12.369180
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/AS1A03_086T01_9000001568_10824cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10824cztM0_level2_quad_clean.evt
Size (bytes)502,626,24076,515,840
Size479.3 MB 73.0 MB
Events in quadrant A4,099,279477,995
Events in quadrant B4,320,659477,299
Events in quadrant C2,767,162489,494
Events in quadrant D3,639,266464,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159292
B0166241
C0120053
D0145331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58383015.155875%
B58384217.211374%
C5837360.616755%
D5838971.661528%

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 6948 5839 153 153 2.20% 2.62%
B 6948 5839 229 229 3.30% 3.92%
C 6948 5839 0 0 0.00% 0.00%
D 6948 5839 37 37 0.53% 0.63%

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 5 1119901 7504.03 725 713 149.1
A 15 174 102755 684.18 725 713 149.1
A 13 251 79981 531.48 725 713 149.1
B 4 239 1316509 9584.07 714 699 137.3
B 10 245 97184 702.78 714 699 137.3
B 0 214 43776 313.76 714 699 137.3
C 13 61 5229 27.4 708 714 164.8
C 3 254 3838 18.96 708 714 164.8
C 14 234 3369 16.12 708 714 164.8
D 8 195 409687 2384.73 709 693 171.5
D 1 52 288609 1678.75 709 693 171.5
D 2 14 68398 394.77 709 693 171.5

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