ASTROSAT CZTI

Data Quality Report

Orbit 46214

Creation date: 2024-06-27T23:20:27.676729
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_093T12_9000006184_46214cztM0_level2.fits modeM0/AS1A13_093T12_9000006184_46214cztM0_level2_quad_clean.evt
Size (bytes)497,940,480112,890,240
Size474.9 MB 107.7 MB
Events in quadrant A6,187,675740,965
Events in quadrant B3,859,986791,213
Events in quadrant C3,198,157769,276
Events in quadrant D4,684,146665,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228522
B0157982
C0137742
D0183972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64743495.390794%
B64742103.243744%
C64741001.544640%
D64744727.290701%

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 7659 6474 30 30 0.39% 0.46%
B 7659 6474 37 37 0.48% 0.57%
C 7659 6474 13 13 0.17% 0.20%
D 7659 6474 338 338 4.41% 5.22%

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 3126407 20201.14 758 741 154.7
A 9 191 57402 366.2 758 741 154.7
A 13 248 35017 221.52 758 741 154.7
B 3 112 433368 2910.77 764 743 148.6
B 5 172 132725 888.0 764 743 148.6
B 5 255 124061 829.7 764 743 148.6
C 12 2 99839 560.8 766 768 176.7
C 5 49 50279 280.26 766 768 176.7
C 10 218 18988 103.14 766 768 176.7
D 1 52 1125025 6060.75 741 719 185.5
D 2 249 264062 1419.59 741 719 185.5
D 12 128 202656 1088.57 741 719 185.5

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