ASTROSAT CZTI

Data Quality Report

Orbit 27714

Creation date: 2024-06-27T19:43:26.432329
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/AS1T03_262T01_9000003988_27714cztM0_level2.evt modeM0/AS1T03_262T01_9000003988_27714cztM0_level2_quad_clean.evt
Size (bytes)428,535,36096,154,560
Size408.7 MB 91.7 MB
Events in quadrant A2,987,083631,406
Events in quadrant B3,102,928636,216
Events in quadrant C3,044,495608,648
Events in quadrant D3,415,579596,384

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129850
B0131560
C0128960
D0144730

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6303440.698080%
B6304390.618655%
C6303731.158179%
D63031272.014914%

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 7228 6303 1 1 0.01% 0.02%
B 7229 6304 0 0 0.00% 0.00%
C 7228 6303 0 0 0.00% 0.00%
D 7228 6303 92 92 1.27% 1.46%

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 13 254 8655 51.03 769 753 154.9
A 3 137 7526 43.74 769 753 154.9
A 8 192 7381 42.8 769 753 154.9
B 5 255 48541 328.65 759 740 145.4
B 12 111 18199 120.04 759 740 145.4
B 0 230 17646 116.24 759 740 145.4
C 14 238 118616 683.3 736 740 172.5
C 3 233 45272 258.14 736 740 172.5
C 15 208 6967 36.1 736 740 172.5
D 1 52 404985 2327.34 739 720 173.7
D 11 176 148416 850.28 739 720 173.7
D 2 250 37656 212.64 739 720 173.7

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