ASTROSAT CZTI

Data Quality Report

Orbit 04166

Creation date: 2024-06-27T14:38:16.601489
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_04166cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04166cztM0_level2_quad_clean.evt
Size (bytes)444,461,76063,869,760
Size423.9 MB 60.9 MB
Events in quadrant A3,418,455382,797
Events in quadrant B3,411,004387,393
Events in quadrant C2,811,302375,730
Events in quadrant D3,402,902359,216

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142682
B0140041
C0124981
D0144681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6140821.335505%
B6140831.351792%
C6140240.390879%
D61401081.758958%

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 7315 6141 8 8 0.11% 0.13%
B 7315 6141 26 26 0.36% 0.42%
C 7315 6141 0 0 0.00% 0.00%
D 7315 6141 45 45 0.62% 0.73%

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 0 199 390484 2572.58 748 733 151.5
A 0 50 76070 497.27 748 733 151.5
A 0 226 43454 281.98 748 733 151.5
B 10 16 360060 2490.32 749 732 144.3
B 14 167 72162 495.04 749 732 144.3
B 4 81 30422 205.77 749 732 144.3
C 9 144 17081 97.9 715 718 167.1
C 13 61 5976 31.46 715 718 167.1
C 3 202 1820 6.59 715 718 167.1
D 2 63 239720 1373.05 718 697 174.1
D 2 232 184750 1057.28 718 697 174.1
D 13 239 104396 595.69 718 697 174.1

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