ASTROSAT CZTI

Data Quality Report

Orbit 30475

Creation date: 2024-06-27T20:15:44.477005
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_058T03_9000004380_30475cztM0_level2.evt modeM0/AS1A10_058T03_9000004380_30475cztM0_level2_quad_clean.evt
Size (bytes)712,100,160105,649,920
Size679.1 MB 100.8 MB
Events in quadrant A3,605,648699,029
Events in quadrant B5,924,664693,859
Events in quadrant C4,812,436658,513
Events in quadrant D6,707,851616,961

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157822
B0233772
C0196542
D0253772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7633320.419232%
B76341632.135185%
C76341772.318575%
D76346999.156406%

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 7918 7634 1 1 0.01% 0.01%
B 7919 7635 16 16 0.20% 0.21%
C 7919 7635 3 3 0.04% 0.04%
D 7919 7635 660 660 8.33% 8.64%

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 47663 254.84 918 901 183.5
A 13 254 15465 79.37 918 901 183.5
A 8 192 14081 71.83 918 901 183.5
B 6 159 2151927 12424.92 908 885 173.1
B 5 172 55625 316.19 908 885 173.1
B 4 171 42195 238.61 908 885 173.1
C 3 233 1135142 5492.91 870 876 206.5
C 14 238 149890 721.63 870 876 206.5
C 10 22 66267 316.67 870 876 206.5
D 13 104 2421972 11765.68 854 831 205.8
D 8 195 348718 1690.58 854 831 205.8
D 13 249 158232 764.9 854 831 205.8

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