ASTROSAT CZTI

Data Quality Report

Orbit 46803

Creation date: 2024-06-27T23:27:50.383899
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/AS1A13_068T13_9000006268_46803cztM0_level2.fits modeM0/AS1A13_068T13_9000006268_46803cztM0_level2_quad_clean.evt
Size (bytes)277,145,28062,904,960
Size264.3 MB 60.0 MB
Events in quadrant A3,661,589392,789
Events in quadrant B2,120,121431,665
Events in quadrant C1,822,998418,759
Events in quadrant D2,338,729375,963

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181564729
B0111812319
C0106232097
D0126192958

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010217
B010319
C010519
D010216

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105
B0104
C0104
D081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3845621.612484%
B4079130.318706%
C4147100.241138%
D4055431.060419%

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 6131 4264 1 1 0.02% 0.02%
B 6124 4505 2 2 0.03% 0.04%
C 6133 4532 7 7 0.11% 0.15%
D 6115 4449 36 36 0.59% 0.81%

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 10 83 1997629 22783.73 415 406 87.7
A 13 248 34787 392.21 415 406 87.7
A 13 6 12897 142.49 415 406 87.7
B 3 112 205842 2318.53 441 428 88.6
B 15 36 48079 537.84 441 428 88.6
B 0 198 39599 442.13 441 428 88.6
C 14 254 51674 484.45 442 445 105.7
C 0 207 32209 300.38 442 445 105.7
C 3 233 8376 75.0 442 445 105.7
D 1 52 354362 3232.77 431 417 109.5
D 13 249 116572 1060.91 431 417 109.5
D 2 37 73604 668.46 431 417 109.5

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