ASTROSAT CZTI

Data Quality Report

Orbit 19064

Creation date: 2024-06-27T17:58:39.938833
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/AS1A05_046T01_9000002834_19064cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19064cztM0_level2_quad_clean.evt
Size (bytes)554,999,04098,591,040
Size529.3 MB 94.0 MB
Events in quadrant A3,316,503639,529
Events in quadrant B3,650,008656,452
Events in quadrant C3,400,697638,528
Events in quadrant D5,987,828585,159

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139943
B0150002
C0141092
D0223732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6691580.866836%
B66911362.032581%
C6691751.120909%
D66914917.338216%

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 7931 6692 1 1 0.01% 0.01%
B 7931 6692 18 18 0.23% 0.27%
C 7931 6692 0 0 0.00% 0.00%
D 7931 6692 437 437 5.51% 6.53%

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 13 254 8764 45.5 861 846 174.0
A 0 226 7369 37.48 861 846 174.0
A 3 137 6212 30.84 861 846 174.0
B 7 220 105983 645.99 860 839 162.8
B 3 112 97262 592.41 860 839 162.8
B 0 197 20975 123.71 860 839 162.8
C 14 238 129917 659.41 837 848 195.7
C 13 61 5875 25.68 837 848 195.7
C 3 233 4181 17.03 837 848 195.7
D 1 20 2026730 10133.58 821 801 199.9
D 7 238 420121 2097.41 821 801 199.9
D 1 52 221301 1102.93 821 801 199.9

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