ASTROSAT CZTI

Data Quality Report

Orbit 29616

Creation date: 2024-06-27T20:06:05.445827
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/AS1T03_286T01_9000004268_29616cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29616cztM0_level2_quad_clean.evt
Size (bytes)463,314,240104,742,720
Size441.9 MB 99.9 MB
Events in quadrant A2,973,547684,711
Events in quadrant B3,118,893722,991
Events in quadrant C3,153,625693,342
Events in quadrant D4,370,752644,692

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127673
B0130642
C0131682
D0170142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6109180.294647%
B6109270.441971%
C6109771.260435%
D61091452.373547%

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 7484 6110 0 0 0.00% 0.00%
B 7484 6110 1 1 0.01% 0.02%
C 7484 6110 0 0 0.00% 0.00%
D 7484 6110 77 77 1.03% 1.26%

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 13088 80.98 767 755 152.3
A 13 254 11030 67.47 767 755 152.3
A 3 137 7042 41.28 767 755 152.3
B 0 230 24340 162.71 783 765 144.9
B 12 111 16954 111.74 783 765 144.9
B 11 111 15374 100.83 783 765 144.9
C 14 238 124928 708.54 759 763 175.2
C 3 233 31785 177.02 759 763 175.2
C 10 22 18367 100.45 759 763 175.2
D 12 227 710704 4065.74 741 722 174.6
D 8 195 533689 3052.06 741 722 174.6
D 7 80 178841 1020.01 741 722 174.6

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