ASTROSAT CZTI

Data Quality Report

Orbit 12222

Creation date: 2024-06-27T16:24:00.943522
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/AS1C03_014T01_9000001804_12222cztM0_level2.evt modeM0/AS1C03_014T01_9000001804_12222cztM0_level2_quad_clean.evt
Size (bytes)235,313,28052,367,040
Size224.4 MB 49.9 MB
Events in quadrant A1,793,831355,874
Events in quadrant B2,198,524322,124
Events in quadrant C1,279,082351,062
Events in quadrant D1,644,743338,219

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074382
B085371
C062751
D071411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30601143.725490%
B306043614.248366%
C3060180.588235%
D3060351.143791%

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 3061 3061 14 14 0.46% 0.46%
B 3061 3061 203 203 6.63% 6.63%
C 3061 3061 2 2 0.07% 0.07%
D 3061 3061 23 23 0.75% 0.75%

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 13 251 128749 1850.43 329 322 69.4
A 1 162 118758 1706.48 329 322 69.4
A 1 178 66727 956.79 329 322 69.4
B 4 239 797080 13610.19 304 297 58.5
B 4 206 107021 1823.0 304 297 58.5
B 0 228 22210 374.31 304 297 58.5
C 15 208 19231 251.81 320 321 75.1
C 4 175 4920 61.24 320 321 75.1
C 13 61 2387 27.51 320 321 75.1
D 1 52 131862 1695.88 315 305 77.6
D 13 249 54618 700.14 315 305 77.6
D 10 199 53006 679.36 315 305 77.6

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