ASTROSAT CZTI

Data Quality Report

Orbit 44421

Creation date: 2024-06-27T23:03:25.827262
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_072T03_9000006000_44421cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44421cztM0_level2_quad_clean.evt
Size (bytes)530,023,680116,190,720
Size505.5 MB 110.8 MB
Events in quadrant A5,091,601791,417
Events in quadrant B3,501,419806,295
Events in quadrant C3,993,386759,500
Events in quadrant D6,462,523648,454

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212190
B0155180
C0170890
D0243130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7356751.019576%
B7356670.910821%
C73571772.405872%
D735778710.697295%

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 7356 7356 1 1 0.01% 0.01%
B 7356 7356 3 3 0.04% 0.04%
C 7357 7357 109 109 1.48% 1.48%
D 7357 7357 677 677 9.20% 9.20%

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 1783670 10041.69 840 821 177.5
A 8 4 51682 286.47 840 821 177.5
A 3 137 9682 49.91 840 821 177.5
B 0 229 101094 603.01 834 808 166.3
B 0 190 41963 247.46 834 808 166.3
B 4 170 24165 140.44 834 808 166.3
C 12 16 434750 2258.77 815 819 192.1
C 15 158 158984 823.31 815 819 192.1
C 3 233 129540 670.04 815 819 192.1
D 4 221 1253966 6223.14 793 767 201.4
D 2 249 1103721 5477.05 793 767 201.4
D 5 235 585060 2901.48 793 767 201.4

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