ASTROSAT CZTI

Data Quality Report

Orbit 44413

Creation date: 2024-06-27T23:03:17.976437
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_008T08_9000005998_44413cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44413cztM0_level2_quad_clean.evt
Size (bytes)517,760,640107,369,280
Size493.8 MB 102.4 MB
Events in quadrant A4,885,315727,090
Events in quadrant B3,393,486760,468
Events in quadrant C3,604,488721,900
Events in quadrant D6,767,365579,105

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203801
B0143371
C0151811
D0246681

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66361922.893309%
B66361211.823388%
C66371462.199789%
D6637105915.956004%

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 8531 6638 3 3 0.04% 0.05%
B 8531 6638 12 12 0.14% 0.18%
C 8532 6639 45 45 0.53% 0.68%
D 8532 6639 904 904 10.60% 13.62%

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 1822884 11381.48 774 758 160.1
A 13 248 58427 360.22 774 758 160.1
A 0 243 8929 51.04 774 758 160.1
B 0 190 103853 666.9 775 751 154.6
B 5 255 98756 633.93 775 751 154.6
B 0 183 46625 296.73 775 751 154.6
C 14 254 293708 1636.31 757 760 179.0
C 12 16 207560 1155.11 757 760 179.0
C 3 233 125849 698.7 757 760 179.0
D 5 235 1419200 7956.49 706 685 178.3
D 2 249 808921 4533.42 706 685 178.3
D 13 249 643957 3608.13 706 685 178.3

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