ASTROSAT CZTI

Data Quality Report

Orbit 07993

Creation date: 2024-06-27T15:26:28.069655
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/AS1G06_028T01_9000001094_07993cztM0_level2.evt modeM0/AS1G06_028T01_9000001094_07993cztM0_level2_quad_clean.evt
Size (bytes)297,878,40071,265,600
Size284.1 MB 68.0 MB
Events in quadrant A1,984,047466,223
Events in quadrant B1,911,980478,749
Events in quadrant C1,802,850485,609
Events in quadrant D3,046,441442,330

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084700
B084840
C081410
D0118120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4037110.272480%
B4037230.569730%
C403700.000000%
D40371934.780778%

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 4037 4037 10 10 0.25% 0.25%
B 4037 4037 5 5 0.12% 0.12%
C 4037 4037 0 0 0.00% 0.00%
D 4037 4037 173 173 4.29% 4.29%

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 15 239 139517 1473.07 455 448 94.4
A 4 2 83799 882.88 455 448 94.4
A 13 251 4385 41.7 455 448 94.4
B 4 239 89226 1000.21 461 451 88.8
B 11 51 12974 141.09 461 451 88.8
B 10 16 10490 113.11 461 451 88.8
C 1 16 41290 389.24 449 453 104.9
C 12 4 6364 56.34 449 453 104.9
C 13 61 3275 26.9 449 453 104.9
D 1 83 1249293 11696.2 434 422 106.8
D 1 52 62064 577.3 434 422 106.8
D 2 14 55220 513.21 434 422 106.8

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