ASTROSAT CZTI

Data Quality Report

Orbit 47719

Creation date: 2024-07-25T11:08:26.332617
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/AS1T05_213T01_9000006344_47719cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47719cztM0_level2_quad_clean.evt
Size (bytes)500,906,880112,118,400
Size477.7 MB 106.9 MB
Events in quadrant A7,065,090734,951
Events in quadrant B3,383,124774,032
Events in quadrant C3,045,282748,347
Events in quadrant D4,516,892660,151

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260342
B0147432
C0140352
D0183272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68532723.969065%
B6853831.211148%
C6854630.919171%
D68543455.033557%

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 8853 6855 55 55 0.62% 0.80%
B 8853 6853 0 0 0.00% 0.00%
C 8854 6855 8 8 0.09% 0.12%
D 8854 6854 262 262 2.96% 3.82%

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 4055539 25533.99 763 745 158.8
A 9 191 41376 255.86 763 745 158.8
A 13 248 13589 80.88 763 745 158.8
B 0 186 103626 685.78 768 743 150.0
B 5 255 75267 496.75 768 743 150.0
B 0 200 63314 417.07 768 743 150.0
C 14 254 42029 230.07 768 772 179.3
C 12 250 10027 51.61 768 772 179.3
C 13 61 4978 23.45 768 772 179.3
D 2 165 1217143 6539.17 754 730 186.0
D 2 249 121787 650.78 754 730 186.0
D 6 239 88740 473.12 754 730 186.0

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