ASTROSAT CZTI

Data Quality Report

Orbit 43561

Creation date: 2024-06-27T22:53:10.902151
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/AS1A05_174T01_9000005880_43561cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43561cztM0_level2_quad_clean.evt
Size (bytes)908,017,92083,563,200
Size866.0 MB 79.7 MB
Events in quadrant A5,406,576709,946
Events in quadrant B3,078,629748,050
Events in quadrant C13,195,085482,510
Events in quadrant D11,466,128165,678

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202381
B0130511
C0432689
D0382531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60034747.896052%
B60031031.715809%
C6002388664.745085%
D6002596399.350217%

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 7213 6003 150 150 2.08% 2.50%
B 7213 6004 8 8 0.11% 0.13%
C 7212 6002 3840 3840 53.24% 63.98%
D 7211 6001 2678 2678 37.14% 44.63%

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 0 228 1222829 8557.55 690 678 142.8
A 10 83 645780 4517.03 690 678 142.8
A 15 222 517012 3615.39 690 678 142.8
B 3 42 75132 542.71 706 689 137.2
B 3 25 71379 515.35 706 689 137.2
B 0 199 33226 237.2 706 689 137.2
C 15 142 6825609 61676.1 469 473 110.7
C 15 158 1818770 16431.24 469 473 110.7
C 15 126 1039583 9390.03 469 473 110.7
D 4 216 3138847 51547.97 195 187 60.9
D 4 212 2882497 47337.79 195 187 60.9
D 13 187 1395568 22917.12 195 187 60.9

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