ASTROSAT CZTI

Data Quality Report

Orbit 44648

Creation date: 2024-06-27T23:04:52.811862
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_072T01_9000006008_44648cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44648cztM0_level2_quad_clean.evt
Size (bytes)479,730,240108,046,080
Size457.5 MB 103.0 MB
Events in quadrant A5,103,909733,360
Events in quadrant B3,038,005778,442
Events in quadrant C3,640,576727,806
Events in quadrant D5,481,721588,138

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203782
B0134992
C0153292
D0208492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63582243.523120%
B6358560.880780%
C6358911.431268%
D635881912.881409%

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 7613 6359 67 67 0.88% 1.05%
B 7613 6359 6 6 0.08% 0.09%
C 7613 6359 88 88 1.16% 1.38%
D 7613 6359 603 603 7.92% 9.48%

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 1969612 13535.82 712 699 145.5
A 13 248 229620 1573.78 712 699 145.5
A 15 223 112376 767.75 712 699 145.5
B 5 172 61848 443.34 721 701 137.9
B 0 183 47792 341.43 721 701 137.9
B 0 189 20366 142.58 721 701 137.9
C 15 252 768995 4722.57 702 706 162.7
C 2 14 53646 325.41 702 706 162.7
C 14 254 31867 191.54 702 706 162.7
D 1 52 1910080 11885.21 647 627 160.7
D 2 249 477167 2966.18 647 627 160.7
D 13 249 275587 1711.46 647 627 160.7

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