ASTROSAT CZTI

Data Quality Report

Orbit 29330

Creation date: 2024-06-27T20:02:48.410638
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/AS1A10_050T03_9000004216_29330cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29330cztM0_level2_quad_clean.evt
Size (bytes)950,941,44065,162,880
Size906.9 MB 62.1 MB
Events in quadrant A3,521,538445,699
Events in quadrant B4,075,643444,839
Events in quadrant C4,114,488431,072
Events in quadrant D16,611,097159,230

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148401
B0164351
C0165703
D0540841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70351812.572850%
B70352844.036958%
C70352954.193319%
D7035699699.445629%

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 7345 7036 1 1 0.01% 0.01%
B 7345 7036 50 50 0.68% 0.71%
C 7345 7036 4 4 0.05% 0.06%
D 7345 7036 5447 5447 74.16% 77.42%

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 0 13 18138 95.39 896 876 181.0
A 13 254 16883 88.46 896 876 181.0
A 1 113 15945 83.27 896 876 181.0
B 0 190 186643 1084.58 880 858 171.3
B 5 172 154505 896.96 880 858 171.3
B 5 255 100341 580.76 880 858 171.3
C 3 233 536667 2660.77 851 858 201.4
C 14 238 158748 784.06 851 858 201.4
C 7 247 48498 236.57 851 858 201.4
D 12 33 11452787 123207.74 372 361 93.0
D 1 52 1728473 18591.41 372 361 93.0
D 12 17 1098945 11818.81 372 361 93.0

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