ASTROSAT CZTI

Data Quality Report

Orbit 44726

Creation date: 2024-06-27T23:05:48.178822
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_009T01_9000006016_44726cztM0_level2.fits modeM0/AS1A13_009T01_9000006016_44726cztM0_level2_quad_clean.evt
Size (bytes)659,482,560105,261,120
Size628.9 MB 100.4 MB
Events in quadrant A9,565,453582,236
Events in quadrant B3,932,306758,986
Events in quadrant C3,124,639730,820
Events in quadrant D7,242,279622,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0338300
B0165270
C0146500
D0264260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7060194927.606232%
B70601802.549575%
C7061330.467356%
D70616759.559552%

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 7060 7060 1411 1411 19.99% 19.99%
B 7060 7060 83 83 1.18% 1.18%
C 7061 7061 8 8 0.11% 0.11%
D 7061 7061 559 559 7.92% 7.92%

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 5055043 33514.93 720 704 150.8
A 10 83 1677037 11115.63 720 704 150.8
A 13 248 34516 224.2 720 704 150.8
B 4 171 247881 1580.36 782 757 156.4
B 0 189 235815 1503.19 782 757 156.4
B 5 255 197411 1257.6 782 757 156.4
C 14 254 30661 162.42 776 781 184.0
C 0 207 16170 83.65 776 781 184.0
C 15 208 15182 78.28 776 781 184.0
D 13 174 1765415 9349.38 748 725 188.7
D 13 249 699712 3703.25 748 725 188.7
D 1 52 457684 2420.98 748 725 188.7

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