ASTROSAT CZTI

Data Quality Report

Orbit 04530

Creation date: 2024-06-27T14:43:22.510791
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_250T01_9000000568_04530cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04530cztM0_level2_quad_clean.evt
Size (bytes)498,467,52078,183,360
Size475.4 MB 74.6 MB
Events in quadrant A5,148,660464,063
Events in quadrant B3,252,684496,965
Events in quadrant C2,992,459482,941
Events in quadrant D3,258,142467,124

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195893
B0138962
C0134542
D0143782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65375838.918464%
B6537530.810769%
C6537260.397736%
D6537851.300291%

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 7897 6538 412 412 5.22% 6.30%
B 7897 6538 13 13 0.16% 0.20%
C 7897 6538 6 6 0.08% 0.09%
D 7897 6538 58 58 0.73% 0.89%

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 0 13 2223366 15044.45 736 722 147.7
A 8 15 67741 453.63 736 722 147.7
A 13 248 9053 56.39 736 722 147.7
B 4 80 142685 976.21 777 761 145.4
B 4 48 45072 304.79 777 761 145.4
B 15 54 29375 196.82 777 761 145.4
C 14 48 44054 252.71 743 744 171.4
C 1 16 17384 97.09 743 744 171.4
C 9 247 13352 73.57 743 744 171.4
D 7 67 223783 1165.21 721 706 191.4
D 13 235 155949 810.89 721 706 191.4
D 2 136 33491 171.25 721 706 191.4

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