ASTROSAT CZTI

Data Quality Report

Orbit 47046

Creation date: 2024-06-27T23:31:08.795759
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/AS1C09_005T01_9000006296_47046cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47046cztM0_level2_quad_clean.evt
Size (bytes)633,248,640117,636,480
Size603.9 MB 112.2 MB
Events in quadrant A6,991,177784,984
Events in quadrant B6,461,029762,416
Events in quadrant C3,562,307783,129
Events in quadrant D5,840,492704,123

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257711
B0242476
C0162361
D0226251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75692793.686088%
B756883010.967230%
C7569750.990884%
D75694055.350773%

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 7654 7571 3 3 0.04% 0.04%
B 7653 7570 465 465 6.08% 6.14%
C 7654 7571 26 26 0.34% 0.34%
D 7654 7571 273 273 3.57% 3.61%

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 3700631 21208.15 832 814 174.5
A 9 191 21502 118.59 832 814 174.5
A 13 248 16942 92.45 832 814 174.5
B 3 112 2591500 16191.22 811 786 160.0
B 5 172 330157 2058.47 811 786 160.0
B 4 171 177868 1106.71 811 786 160.0
C 14 254 368113 1927.72 814 816 190.5
C 12 250 16678 83.25 814 816 190.5
C 14 67 6099 27.73 814 816 190.5
D 1 52 2209306 10838.85 805 778 203.8
D 13 249 154811 755.95 805 778 203.8
D 2 249 87968 427.9 805 778 203.8

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