ASTROSAT CZTI

Data Quality Report

Orbit 47958

Creation date: 2024-08-10T14:34:17.044383
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_062T02_9000006384_47958cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47958cztM0_level2_quad_clean.evt
Size (bytes)466,876,800118,068,480
Size445.2 MB 112.6 MB
Events in quadrant A6,985,778778,537
Events in quadrant B3,271,565804,671
Events in quadrant C3,240,682774,043
Events in quadrant D3,211,020703,529

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259300
B0150140
C0152111
D0151840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7384490.663597%
B7385140.189573%
C738470.094800%
D7384190.257313%

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 7384 7384 1 1 0.01% 0.01%
B 7385 7385 0 0 0.00% 0.00%
C 7384 7384 2 2 0.03% 0.03%
D 7384 7384 17 17 0.23% 0.23%

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 3846614 22728.15 807 790 169.2
A 0 31 15308 85.8 807 790 169.2
A 13 254 9950 54.13 807 790 169.2
B 4 171 39567 242.78 805 777 159.8
B 0 198 31312 191.11 805 777 159.8
B 12 111 20635 124.28 805 777 159.8
C 14 254 90935 476.09 799 802 189.3
C 14 67 13605 67.63 799 802 189.3
C 12 250 11794 58.06 799 802 189.3
D 11 224 87426 433.71 798 772 199.8
D 2 234 36759 180.12 798 772 199.8
D 15 127 25024 121.38 798 772 199.8

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