ASTROSAT CZTI

Data Quality Report

Orbit 09484

Creation date: 2024-06-27T15:46:42.815914
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/AS1A03_005T01_9000001348_09484cztM0_level2.evt modeM0/AS1A03_005T01_9000001348_09484cztM0_level2_quad_clean.evt
Size (bytes)1,455,719,040233,038,080
Size1.4 GB 222.2 MB
Events in quadrant A9,692,5171,488,885
Events in quadrant B8,171,3251,495,543
Events in quadrant C8,568,8501,504,955
Events in quadrant D16,472,1431,361,023

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04009832
B0362487
C0376595
D0610848

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03560
B03560
C03560
D03560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A175071250.714000%
B175141260.719424%
C175151560.890665%
D17514258514.759621%

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 19796 17520 4 4 0.02% 0.02%
B 19796 17520 3 3 0.02% 0.02%
C 19796 17520 58 58 0.29% 0.33%
D 19796 17520 2202 2202 11.12% 12.57%

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 8 5 1450168 3457.38 2073 2035 418.9
A 1 162 148089 348.7 2073 2035 418.9
A 1 178 46029 105.03 2073 2035 418.9
B 4 173 73449 182.76 2071 2018 390.9
B 12 111 44880 109.66 2071 2018 390.9
B 11 111 36107 87.22 2071 2018 390.9
C 4 254 380707 809.7 2039 2053 467.6
C 9 68 221075 468.35 2039 2053 467.6
C 13 61 15130 27.96 2039 2053 467.6
D 1 52 7857467 17344.69 1884 1839 452.9
D 8 195 721298 1588.52 1884 1839 452.9
D 2 136 297343 652.45 1884 1839 452.9

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