ASTROSAT CZTI

Data Quality Report

Orbit 29054

Creation date: 2024-06-27T19:59:43.766247
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/AS1C05_019T04_9000004162_29054cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29054cztM0_level2_quad_clean.evt
Size (bytes)576,046,080120,997,440
Size549.4 MB 115.4 MB
Events in quadrant A3,336,833799,630
Events in quadrant B3,820,511818,565
Events in quadrant C3,645,804798,319
Events in quadrant D6,158,250750,974

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148192
B0159922
C0153592
D0231802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7141590.826215%
B71411742.436634%
C71411381.932502%
D714184511.833077%

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 9036 7141 0 0 0.00% 0.00%
B 9036 7141 59 59 0.65% 0.83%
C 9036 7141 0 0 0.00% 0.00%
D 9036 7141 638 638 7.06% 8.93%

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 15 174 49979 288.82 847 830 170.2
A 6 16 12331 67.58 847 830 170.2
A 13 254 12320 67.52 847 830 170.2
B 10 246 297950 1859.45 849 825 159.8
B 10 245 127807 794.67 849 825 159.8
B 4 80 27903 169.46 849 825 159.8
C 3 233 259672 1356.18 827 833 190.9
C 14 238 135234 704.19 827 833 190.9
C 2 114 16482 81.99 827 833 190.9
D 1 52 1498668 7990.77 789 766 187.5
D 7 238 942555 5024.1 789 766 187.5
D 8 195 661472 3524.63 789 766 187.5

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