ASTROSAT CZTI

Data Quality Report

Orbit 10324

Creation date: 2024-06-27T15:57:56.647811
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_112T01_9000001488_10324cztM0_level2.evt modeM0/AS1A03_112T01_9000001488_10324cztM0_level2_quad_clean.evt
Size (bytes)192,784,32034,329,600
Size183.9 MB 32.7 MB
Events in quadrant A1,329,159212,010
Events in quadrant B1,296,668216,135
Events in quadrant C1,309,459212,803
Events in quadrant D1,710,374198,155

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063
B063
C063
D063

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09837
B09838
C09833
D09632

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102364524
B0110395571
C0104694728
D0123345571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A281820.070972%
B266570.262664%
C283820.070472%
D2847883.090973%

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 3554 3026 0 0 0.00% 0.00%
B 3554 2918 0 0 0.00% 0.00%
C 3554 3033 0 0 0.00% 0.00%
D 3554 2967 84 84 2.36% 2.83%

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 15 14172 195.0 339 331 71.0
A 8 5 6258 83.5 339 331 71.0
A 3 1 3529 45.06 339 331 71.0
B 4 239 26404 417.14 318 309 62.6
B 11 51 17500 274.8 318 309 62.6
B 0 214 14971 234.38 318 309 62.6
C 13 61 2553 28.47 334 335 77.9
C 14 234 2474 27.45 334 335 77.9
C 8 128 2323 25.51 334 335 77.9
D 2 14 228608 2833.96 332 321 80.6
D 8 195 157477 1950.94 332 321 80.6
D 2 33 29135 357.7 332 321 80.6

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