ASTROSAT CZTI

Data Quality Report

Orbit 44008

Creation date: 2024-06-27T22:58:12.467508
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_037T01_9000005930_44008cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44008cztM0_level2_quad_clean.evt
Size (bytes)422,778,240109,644,480
Size403.2 MB 104.6 MB
Events in quadrant A4,552,662719,058
Events in quadrant B3,239,045765,003
Events in quadrant C3,277,892730,528
Events in quadrant D4,075,549652,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178522
B0139242
C0142242
D0165122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64921882.895872%
B6492390.600739%
C6492340.523722%
D64911201.848714%

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 7627 6493 77 77 1.01% 1.19%
B 7627 6493 6 6 0.08% 0.09%
C 7627 6493 9 9 0.12% 0.14%
D 7626 6492 92 92 1.21% 1.42%

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 1245250 8273.16 728 713 150.4
A 14 238 324575 2152.9 728 713 150.4
A 7 3 125801 831.53 728 713 150.4
B 0 213 141522 963.52 740 717 146.1
B 4 171 64942 439.49 740 717 146.1
B 4 173 27950 186.35 740 717 146.1
C 3 233 298832 1726.38 731 735 172.7
C 15 1 43732 249.01 731 735 172.7
C 2 14 32903 186.3 731 735 172.7
D 1 52 408938 2212.89 721 698 184.5
D 5 222 313183 1693.85 721 698 184.5
D 2 120 135773 732.18 721 698 184.5

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