ASTROSAT CZTI

Data Quality Report

Orbit 23302

Creation date: 2024-06-27T18:52:32.298719
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/AS1A07_148T02_9000003444_23302cztM0_level2.evt modeM0/AS1A07_148T02_9000003444_23302cztM0_level2_quad_clean.evt
Size (bytes)520,464,96089,521,920
Size496.4 MB 85.4 MB
Events in quadrant A3,333,530579,032
Events in quadrant B3,470,851583,796
Events in quadrant C3,431,934561,790
Events in quadrant D5,095,305543,078

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137392
B0140862
C0140682
D0194882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6357540.849457%
B6357801.258455%
C6357871.368570%
D63573635.710241%

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 7552 6357 0 0 0.00% 0.00%
B 7552 6357 14 14 0.19% 0.22%
C 7552 6357 0 0 0.00% 0.00%
D 7552 6357 283 283 3.75% 4.45%

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 13 254 10087 53.65 865 850 172.2
A 0 226 7508 38.67 865 850 172.2
A 3 137 6802 34.57 865 850 172.2
B 0 190 124193 774.66 847 826 159.3
B 12 111 18403 110.37 847 826 159.3
B 11 111 16148 96.21 847 826 159.3
C 14 238 132763 685.91 831 839 192.3
C 7 247 26524 133.54 831 839 192.3
C 10 9 23503 117.84 831 839 192.3
D 1 52 1011537 5002.08 832 811 202.1
D 7 238 791844 3914.82 832 811 202.1
D 13 249 38827 188.14 832 811 202.1

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