ASTROSAT CZTI

Data Quality Report

Orbit 04649

Creation date: 2024-06-27T14:45:05.253418
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/AS1G05_218T03_9000000582_04649cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04649cztM0_level2_quad_clean.evt
Size (bytes)488,825,28083,105,280
Size466.2 MB 79.3 MB
Events in quadrant A3,139,378520,360
Events in quadrant B3,250,649529,064
Events in quadrant C3,081,822510,747
Events in quadrant D4,848,582460,639

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145613
B0146562
C0145412
D0196112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71141101.546247%
B71141331.869553%
C7114620.871521%
D71145667.956143%

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 7669 7115 0 0 0.00% 0.00%
B 7669 7115 0 0 0.00% 0.00%
C 7669 7115 2 2 0.03% 0.03%
D 7669 7115 425 425 5.54% 5.97%

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 14 111 20724 119.24 809 792 167.2
A 12 194 7985 43.03 809 792 167.2
A 0 226 7843 42.18 809 792 167.2
B 4 80 22572 135.56 822 801 160.6
B 12 111 15164 89.44 822 801 160.6
B 15 54 12063 70.13 822 801 160.6
C 9 247 11448 58.24 785 787 183.0
C 13 61 6380 30.56 785 787 183.0
C 1 16 4174 18.5 785 787 183.0
D 13 235 1017209 5663.13 742 719 179.5
D 12 110 283333 1574.52 742 719 179.5
D 8 112 234704 1303.59 742 719 179.5

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