ASTROSAT CZTI

Data Quality Report

Orbit 43363

Creation date: 2024-06-27T22:51:04.008623
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/AS1A09_143T01_9000005870_43363cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43363cztM0_level2_quad_clean.evt
Size (bytes)370,175,04092,684,160
Size353.0 MB 88.4 MB
Events in quadrant A3,530,895620,843
Events in quadrant B2,922,785642,630
Events in quadrant C2,887,384609,100
Events in quadrant D3,909,282528,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138101
B0125391
C0121151
D0158941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58071272.187016%
B5808370.637052%
C5808100.172176%
D58074137.112106%

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 7149 5808 101 101 1.41% 1.74%
B 7150 5809 22 22 0.31% 0.38%
C 7150 5809 9 9 0.13% 0.15%
D 7149 5808 415 415 5.81% 7.15%

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 596543 4624.62 620 607 128.9
A 15 237 501204 3884.77 620 607 128.9
A 13 6 10975 80.46 620 607 128.9
B 0 189 255563 2121.52 619 602 120.2
B 5 172 110836 917.25 619 602 120.2
B 0 245 36796 301.17 619 602 120.2
C 15 214 240838 1687.85 607 610 142.3
C 3 233 202328 1417.28 607 610 142.3
C 15 111 68007 473.53 607 610 142.3
D 1 52 1031742 7051.48 593 575 146.2
D 12 218 270817 1848.01 593 575 146.2
D 13 249 76798 521.24 593 575 146.2

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