ASTROSAT CZTI

Data Quality Report

Orbit 29166

Creation date: 2024-06-27T20:01:00.683429
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/AS1A10_099T01_9000004184_29166cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29166cztM0_level2_quad_clean.evt
Size (bytes)536,788,80072,276,480
Size511.9 MB 68.9 MB
Events in quadrant A3,622,584445,079
Events in quadrant B3,745,315451,805
Events in quadrant C3,657,168428,941
Events in quadrant D4,799,481417,826

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149752
B0152992
C0149962
D0186452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6375981.537255%
B63751362.133333%
C63751802.823529%
D63752994.690196%

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 7680 6376 0 0 0.00% 0.00%
B 7680 6376 11 11 0.14% 0.17%
C 7680 6376 0 0 0.00% 0.00%
D 7680 6376 144 144 1.88% 2.26%

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 11856 59.37 938 924 184.1
A 3 137 8582 41.59 938 924 184.1
A 0 226 7962 38.22 938 924 184.1
B 0 183 96097 556.4 924 905 171.1
B 12 111 20119 112.31 924 905 171.1
B 11 111 18813 104.67 924 905 171.1
C 14 238 147379 726.67 886 895 201.6
C 3 233 37485 181.51 886 895 201.6
C 2 114 15237 71.15 886 895 201.6
D 1 52 1217815 5891.09 883 864 206.6
D 8 195 202554 976.35 883 864 206.6
D 2 234 25596 119.72 883 864 206.6

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