ASTROSAT CZTI

Data Quality Report

Orbit 43753

Creation date: 2024-06-27T22:55:22.606735
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_026T01_9000005904_43753cztM0_level2.fits modeM0/AS1A13_026T01_9000005904_43753cztM0_level2_quad_clean.evt
Size (bytes)782,951,040108,051,840
Size746.7 MB 103.0 MB
Events in quadrant A8,622,122710,516
Events in quadrant B5,869,843730,039
Events in quadrant C4,968,743765,376
Events in quadrant D8,972,250570,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307400
B0223540
C0197560
D0315890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7111100314.104908%
B711183611.756434%
C71113224.528196%
D7112169123.776715%

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 7111 7111 473 473 6.65% 6.65%
B 7111 7111 469 469 6.60% 6.60%
C 7111 7111 217 217 3.05% 3.05%
D 7112 7112 1342 1342 18.87% 18.87%

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 14 63 3041088 18378.7 793 779 165.4
A 15 223 1050423 6345.11 793 779 165.4
A 10 83 909933 5495.84 793 779 165.4
B 0 200 2058923 13126.05 794 770 156.8
B 5 235 227947 1448.84 794 770 156.8
B 4 171 112103 710.04 794 770 156.8
C 15 158 1292971 6854.97 799 803 188.5
C 15 157 296110 1566.61 799 803 188.5
C 3 233 102621 540.15 799 803 188.5
D 5 235 1534777 8006.66 734 708 191.6
D 1 52 994659 5187.66 734 708 191.6
D 4 221 590626 3078.92 734 708 191.6

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