ASTROSAT CZTI

Data Quality Report

Orbit 06990

Creation date: 2024-06-27T15:14:09.921591
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/AS1T01_151T01_9000000960_06990cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_06990cztM0_level2_quad_clean.evt
Size (bytes)450,527,04085,089,600
Size429.7 MB 81.1 MB
Events in quadrant A3,198,695541,928
Events in quadrant B3,562,863548,347
Events in quadrant C3,070,203530,000
Events in quadrant D3,383,187515,553

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133213
B0144282
C0131532
D0139012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63191031.630005%
B63192363.734768%
C6319540.854566%
D6319861.360975%

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 7614 6320 1 1 0.01% 0.02%
B 7614 6320 104 104 1.37% 1.65%
C 7614 6320 0 0 0.00% 0.00%
D 7614 6320 32 32 0.42% 0.51%

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 15 234 11586 64.97 826 807 165.9
A 13 14 9241 50.83 826 807 165.9
A 0 226 8047 43.64 826 807 165.9
B 4 81 247598 1599.54 820 804 154.3
B 0 214 53031 338.5 820 804 154.3
B 10 252 21388 133.41 820 804 154.3
C 13 61 6278 30.53 785 789 179.8
C 12 4 3213 13.48 785 789 179.8
C 7 247 2363 8.75 785 789 179.8
D 8 195 178351 916.11 794 771 193.8
D 2 33 59935 305.22 794 771 193.8
D 9 68 57195 291.08 794 771 193.8

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