ASTROSAT CZTI

Data Quality Report

Orbit 47124

Creation date: 2024-06-27T23:31:59.421249
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/AS1C09_003T01_9000006298_47124cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47124cztM0_level2_quad_clean.evt
Size (bytes)465,212,160109,232,640
Size443.7 MB 104.2 MB
Events in quadrant A6,650,058713,842
Events in quadrant B3,456,377751,469
Events in quadrant C3,187,371709,643
Events in quadrant D3,401,674660,755

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241662
B0150352
C0146672
D0152853

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67672593.827398%
B6767650.960544%
C6767851.256096%
D6766590.872007%

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 7812 6768 87 87 1.11% 1.29%
B 7812 6768 22 22 0.28% 0.33%
C 7812 6768 62 62 0.79% 0.92%
D 7811 6767 37 37 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 10 83 3772350 24762.18 731 716 152.3
A 0 243 17690 111.44 731 716 152.3
A 0 247 11950 73.76 731 716 152.3
B 4 21 168148 1168.36 738 714 143.3
B 5 255 101690 704.61 738 714 143.3
B 0 190 54059 372.24 738 714 143.3
C 14 254 220130 1291.6 720 721 169.9
C 3 233 70238 409.23 720 721 169.9
C 15 208 66497 387.2 720 721 169.9
D 1 47 163882 891.05 721 697 183.1
D 12 233 136294 740.41 721 697 183.1
D 2 249 84529 457.75 721 697 183.1

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