ASTROSAT CZTI

Data Quality Report

Orbit 47044

Creation date: 2024-06-27T23:31:07.315686
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/AS1C09_005T01_9000006296_47044cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47044cztM0_level2_quad_clean.evt
Size (bytes)530,458,560113,869,440
Size505.9 MB 108.6 MB
Events in quadrant A6,815,876750,936
Events in quadrant B3,820,815772,341
Events in quadrant C3,289,043761,820
Events in quadrant D5,149,744659,631

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251372
B0161810
C0153360
D0203650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72223054.223207%
B72232032.810467%
C7223370.512253%
D72235687.863769%

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 7222 7222 0 0 0.00% 0.00%
B 7223 7223 21 21 0.29% 0.29%
C 7223 7223 18 18 0.25% 0.25%
D 7223 7223 414 414 5.73% 5.73%

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 3614780 21351.61 808 787 169.3
A 9 191 27167 155.85 808 787 169.3
A 0 243 20783 118.14 808 787 169.3
B 3 112 341274 2125.35 802 776 160.2
B 4 171 94212 583.22 802 776 160.2
B 0 200 75975 469.38 802 776 160.2
C 14 254 146432 779.33 792 793 186.9
C 12 250 24529 127.01 792 793 186.9
C 14 67 14209 71.79 792 793 186.9
D 1 52 1298953 6684.1 770 746 194.2
D 2 249 261630 1343.22 770 746 194.2
D 13 249 244959 1257.38 770 746 194.2

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