ASTROSAT CZTI

Data Quality Report

Orbit 46966

Creation date: 2024-06-27T23:29:59.219375
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_070T06_9000006288_46966cztM0_level2.fits modeM0/AS1A13_070T06_9000006288_46966cztM0_level2_quad_clean.evt
Size (bytes)459,472,320103,665,600
Size438.2 MB 98.9 MB
Events in quadrant A5,842,279681,544
Events in quadrant B3,912,076691,416
Events in quadrant C3,323,554687,852
Events in quadrant D3,423,147622,130

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215261
B0162491
C0144731
D0151871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65311362.082376%
B65312103.215434%
C6532560.857318%
D65321582.418861%

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 6661 6532 7 7 0.11% 0.11%
B 6661 6532 29 29 0.44% 0.44%
C 6662 6533 55 55 0.83% 0.84%
D 6662 6533 116 116 1.74% 1.78%

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 2994838 20039.4 713 695 149.4
A 14 248 59796 395.56 713 695 149.4
A 3 7 9510 59.0 713 695 149.4
B 3 112 855871 6062.76 708 684 141.1
B 5 255 131570 927.9 708 684 141.1
B 5 32 45290 316.23 708 684 141.1
C 14 254 378367 2256.45 707 708 167.4
C 15 208 161230 959.09 707 708 167.4
C 12 2 10090 56.06 707 708 167.4
D 13 249 587575 3340.49 699 676 175.7
D 1 52 40987 229.44 699 676 175.7
D 1 47 39085 218.61 699 676 175.7

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