ASTROSAT CZTI

Data Quality Report

Orbit 44295

Creation date: 2024-06-27T23:01:42.046300
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/AS1A13_012T08_9000005986_44295cztM0_level2.fits modeM0/AS1A13_012T08_9000005986_44295cztM0_level2_quad_clean.evt
Size (bytes)550,512,00091,687,680
Size525.0 MB 87.4 MB
Events in quadrant A8,301,562513,088
Events in quadrant B3,104,239675,017
Events in quadrant C2,738,716643,462
Events in quadrant D5,753,434512,558

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292541
B0132821
C0126691
D0214561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6182171627.758007%
B6183941.520298%
C6183380.614588%
D618399316.060165%

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 7017 6182 1400 1400 19.95% 22.65%
B 7018 6184 14 14 0.20% 0.23%
C 7018 6184 3 3 0.04% 0.05%
D 7018 6184 818 818 11.66% 13.23%

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 15 223 4529609 34725.86 633 621 130.4
A 10 83 1265910 9701.56 633 621 130.4
A 13 248 22788 169.96 633 621 130.4
B 0 229 117307 859.52 684 663 135.7
B 0 190 63849 465.6 684 663 135.7
B 4 158 58212 424.07 684 663 135.7
C 14 254 84611 528.72 671 673 158.8
C 3 233 14603 87.74 671 673 158.8
C 1 3 14075 84.42 671 673 158.8
D 13 249 1444197 9165.78 626 608 157.5
D 12 2 694367 4404.88 626 608 157.5
D 12 1 265059 1679.08 626 608 157.5

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