ASTROSAT CZTI

Data Quality Report

Orbit 44243

Creation date: 2024-06-27T23:00:54.637525
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_079T01_9000005978_44243cztM0_level2.fits modeM0/AS1A13_079T01_9000005978_44243cztM0_level2_quad_clean.evt
Size (bytes)478,255,680106,562,880
Size456.1 MB 101.6 MB
Events in quadrant A7,797,014650,272
Events in quadrant B3,236,366761,688
Events in quadrant C3,132,291715,982
Events in quadrant D3,047,556658,360

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277466
B0139301
C0138821
D0137751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6310110817.559429%
B63111051.663762%
C6311801.267628%
D6311701.109174%

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 7519 6310 784 784 10.43% 12.42%
B 7521 6312 15 15 0.20% 0.24%
C 7521 6312 48 48 0.64% 0.76%
D 7521 6312 35 35 0.47% 0.55%

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 15 223 3338889 23655.17 687 674 141.1
A 10 83 1277598 9048.51 687 674 141.1
A 12 227 162061 1143.62 687 674 141.1
B 5 255 71247 507.41 723 704 139.0
B 4 173 66192 471.05 723 704 139.0
B 0 190 60429 429.59 723 704 139.0
C 14 254 333739 2031.33 698 703 163.9
C 3 233 30904 184.21 698 703 163.9
C 5 250 15369 89.45 698 703 163.9
D 13 249 173387 980.15 694 673 176.2
D 4 221 60689 340.59 694 673 176.2
D 2 249 39884 222.52 694 673 176.2

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