ASTROSAT CZTI

Data Quality Report

Orbit 13856

Creation date: 2024-06-27T16:47:01.680776
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/AS1A04_115T02_9000002042_13856cztM0_level2.evt modeM0/AS1A04_115T02_9000002042_13856cztM0_level2_quad_clean.evt
Size (bytes)157,875,84015,033,600
Size150.6 MB 14.3 MB
Events in quadrant A1,085,66475,837
Events in quadrant B1,143,60676,376
Events in quadrant C1,119,25580,875
Events in quadrant D1,294,74976,311

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045992
B046721
C046501
D052261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A199121110.597690%
B199125412.757408%
C19911648.237067%
D19911979.894525%

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 2102 1992 0 0 0.00% 0.00%
B 2102 1992 2 2 0.10% 0.10%
C 2102 1992 0 0 0.00% 0.00%
D 2102 1992 14 14 0.67% 0.70%

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 1 162 3558 54.05 280 273 60.8
A 0 226 2520 36.97 280 273 60.8
A 12 194 2042 29.11 280 273 60.8
B 0 214 43880 740.93 276 268 58.9
B 0 219 10510 174.0 276 268 58.9
B 4 80 9667 159.68 276 268 58.9
C 3 233 52842 774.36 273 274 67.9
C 13 61 2018 25.69 273 274 67.9
C 14 220 1624 19.89 273 274 67.9
D 10 157 123424 1808.2 268 260 68.1
D 13 104 41550 606.19 268 260 68.1
D 5 222 34992 509.91 268 260 68.1

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