ASTROSAT CZTI

Data Quality Report

Orbit 11466

Creation date: 2024-06-27T16:13:20.104017
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/AS1G08_032T01_9000001680_11466cztM0_level2.evt modeM0/AS1G08_032T01_9000001680_11466cztM0_level2_quad_clean.evt
Size (bytes)526,334,40097,263,360
Size502.0 MB 92.8 MB
Events in quadrant A3,396,572632,576
Events in quadrant B4,942,381609,716
Events in quadrant C3,130,584625,929
Events in quadrant D4,004,315598,354

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147113
B0191682
C0141042
D0166552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6861781.136861%
B68614176.077831%
C6861420.612156%
D68621952.841737%

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 7622 6863 8 8 0.10% 0.12%
B 7622 6863 249 249 3.27% 3.63%
C 7622 6863 0 0 0.00% 0.00%
D 7623 6864 135 135 1.77% 1.97%

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 13 248 80933 486.62 815 800 164.7
A 14 235 49391 295.08 815 800 164.7
A 9 143 32868 194.74 815 800 164.7
B 4 239 1052038 6995.48 794 777 150.3
B 15 204 297747 1976.15 794 777 150.3
B 3 64 264071 1752.06 794 777 150.3
C 5 239 11035 54.76 800 802 186.9
C 13 61 5733 26.39 800 802 186.9
C 12 4 2108 6.99 800 802 186.9
D 1 52 450853 2371.69 789 768 189.8
D 10 253 281945 1481.64 789 768 189.8
D 2 120 142679 747.79 789 768 189.8

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