ASTROSAT CZTI

Data Quality Report

Orbit 44446

Creation date: 2024-06-27T23:03:39.406712
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_072T03_9000006000_44446cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44446cztM0_level2_quad_clean.evt
Size (bytes)467,038,080109,198,080
Size445.4 MB 104.1 MB
Events in quadrant A4,797,831734,334
Events in quadrant B3,354,913768,908
Events in quadrant C3,138,469732,955
Events in quadrant D5,488,511613,752

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201734
B0142512
C0137902
D0206953

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65422383.638031%
B65441582.414425%
C65441001.528117%
D654376111.630750%

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 7598 6544 8 8 0.11% 0.12%
B 7599 6545 19 19 0.25% 0.29%
C 7599 6545 8 8 0.11% 0.12%
D 7599 6545 535 535 7.04% 8.17%

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 1781464 11228.27 768 753 158.6
A 10 248 38213 236.2 768 753 158.6
A 8 4 11808 69.71 768 753 158.6
B 5 172 176566 1177.45 761 739 149.3
B 0 155 63456 419.99 761 739 149.3
B 0 168 49963 329.64 761 739 149.3
C 2 14 110392 622.09 754 759 176.2
C 14 254 53436 298.9 754 759 176.2
C 3 233 27084 149.37 754 759 176.2
D 13 249 1018995 5613.16 722 699 181.4
D 5 235 836364 4606.44 722 699 181.4
D 2 249 315758 1736.7 722 699 181.4

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