ASTROSAT CZTI

Data Quality Report

Orbit 05194

Creation date: 2024-06-27T14:52:28.889814
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/AS1G05_104T01_9000000656_05194cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05194cztM0_level2_quad_clean.evt
Size (bytes)426,718,08075,366,720
Size407.0 MB 71.9 MB
Events in quadrant A2,965,028463,372
Events in quadrant B3,046,950469,659
Events in quadrant C2,911,521467,178
Events in quadrant D3,567,618438,477

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131413
B0132302
C0129532
D0150082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6349460.724524%
B6349480.756025%
C6349230.362262%
D63492013.165853%

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 7544 6350 3 3 0.04% 0.05%
B 7544 6350 4 4 0.05% 0.06%
C 7544 6350 0 0 0.00% 0.00%
D 7544 6350 125 125 1.66% 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 0 50 46144 296.96 753 740 152.9
A 4 2 13193 81.45 753 740 152.9
A 12 194 7567 44.65 753 740 152.9
B 4 48 35636 242.83 765 749 143.7
B 0 219 20931 140.48 765 749 143.7
B 15 204 13326 87.54 765 749 143.7
C 1 16 17187 97.84 741 745 168.0
C 13 61 5940 30.91 741 745 168.0
C 14 67 2999 13.41 741 745 168.0
D 2 63 336881 1931.1 724 704 174.1
D 7 237 165390 946.0 724 704 174.1
D 2 33 95388 543.89 724 704 174.1

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