ASTROSAT CZTI

Data Quality Report

Orbit 30624

Creation date: 2024-06-27T20:17:49.469570
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/AS1A10_071T05_9000004412_30624cztM0_level2.evt modeM0/AS1A10_071T05_9000004412_30624cztM0_level2_quad_clean.evt
Size (bytes)525,608,64063,921,600
Size501.3 MB 61.0 MB
Events in quadrant A3,551,593388,696
Events in quadrant B4,763,030385,822
Events in quadrant C3,060,189366,477
Events in quadrant D4,121,658359,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144446
B0188251
C0128731
D0165731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62321842.952503%
B6232641.026958%
C62321352.166239%
D6233821.315578%

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 7192 6233 110 110 1.53% 1.76%
B 7192 6233 0 0 0.00% 0.00%
C 7192 6233 2 2 0.03% 0.03%
D 7193 6234 47 47 0.65% 0.75%

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 13 571525 3684.07 769 755 154.9
A 13 254 11388 68.63 769 755 154.9
A 3 137 7747 45.13 769 755 154.9
B 6 159 1695517 11472.16 767 748 147.7
B 0 229 24084 157.97 767 748 147.7
B 12 111 18680 121.38 767 748 147.7
C 14 238 130631 757.51 733 740 171.5
C 14 254 17849 99.78 733 740 171.5
C 3 233 14624 80.97 733 740 171.5
D 8 195 1063914 5991.29 741 721 177.5
D 1 52 158117 886.96 741 721 177.5
D 7 64 46575 258.4 741 721 177.5

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