ASTROSAT CZTI

Data Quality Report

Orbit 44392

Creation date: 2024-06-27T23:03:01.421833
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_008T05_9000005996_44392cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44392cztM0_level2_quad_clean.evt
Size (bytes)63,895,68016,381,440
Size60.9 MB 15.6 MB
Events in quadrant A713,061107,881
Events in quadrant B453,122108,357
Events in quadrant C435,389105,680
Events in quadrant D681,00895,611

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030550
B020770
C020640
D027330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102020.196078%
B102100.000000%
C102100.000000%
D1021313.036239%

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 1020 1020 2 2 0.20% 0.20%
B 1021 1021 0 0 0.00% 0.00%
C 1021 1021 0 0 0.00% 0.00%
D 1021 1021 43 43 4.21% 4.21%

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 276086 11384.17 106 104 24.2
A 0 243 11981 489.92 106 104 24.2
A 13 248 5713 231.37 106 104 24.2
B 5 235 7463 311.77 107 104 23.6
B 0 190 6065 252.54 107 104 23.6
B 0 219 4344 179.63 107 104 23.6
C 14 254 14649 541.36 105 106 26.9
C 12 250 2629 93.92 105 106 26.9
C 3 233 2374 84.43 105 106 26.9
D 4 234 71832 2574.01 103 99 27.9
D 12 233 68198 2443.61 103 99 27.9
D 2 249 44409 1589.99 103 99 27.9

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