ASTROSAT CZTI

Data Quality Report

Orbit 40604

Creation date: 2024-06-27T22:18:06.429892
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/AS1A12_054T02_9000005550_40604cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40604cztM0_level2_quad_clean.evt
Size (bytes)336,775,68090,400,320
Size321.2 MB 86.2 MB
Events in quadrant A2,930,237637,290
Events in quadrant B3,354,633648,144
Events in quadrant C2,774,383617,765
Events in quadrant D2,982,163452,974

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119073
B0135492
C0115522
D0126792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5441170.312443%
B54411322.426025%
C5441390.716780%
D5441119521.962874%

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 9267 5443 3 3 0.03% 0.06%
B 9267 5443 80 80 0.86% 1.47%
C 9267 5443 33 33 0.36% 0.61%
D 9267 5442 92 92 0.99% 1.69%

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 496758 3971.78 616 602 124.9
A 3 1 19299 149.67 616 602 124.9
A 2 79 17070 131.83 616 602 124.9
B 0 190 770127 6561.4 609 592 117.3
B 3 112 122732 1041.42 609 592 117.3
B 4 171 29872 249.65 609 592 117.3
C 15 214 238891 1731.05 594 598 137.7
C 14 254 131596 951.62 594 598 137.7
C 0 10 47349 339.62 594 598 137.7
D 12 191 277562 2218.63 506 492 124.9
D 12 227 257321 2056.55 506 492 124.9
D 2 249 134061 1069.55 506 492 124.9

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