ASTROSAT CZTI

Data Quality Report

Orbit 08613

Creation date: 2024-06-27T15:34:59.198840
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/AS1A03_036T01_9000001204_08613cztM0_level2.evt modeM0/AS1A03_036T01_9000001204_08613cztM0_level2_quad_clean.evt
Size (bytes)433,584,00087,730,560
Size413.5 MB 83.7 MB
Events in quadrant A3,041,111554,100
Events in quadrant B3,422,628568,392
Events in quadrant C2,932,020555,331
Events in quadrant D3,288,867521,040

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136643
B0145032
C0134172
D0145152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6555470.717010%
B6555891.357742%
C6555180.274600%
D6555861.311976%

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 9075 6557 13 13 0.14% 0.20%
B 9075 6557 24 24 0.26% 0.37%
C 9075 6557 0 0 0.00% 0.00%
D 9075 6557 64 64 0.71% 0.98%

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 13 248 42243 271.07 756 741 153.1
A 13 14 31740 202.47 756 741 153.1
A 15 174 27857 177.11 756 741 153.1
B 10 16 207811 1428.87 771 753 144.9
B 0 214 111062 761.22 771 753 144.9
B 4 80 50349 342.25 771 753 144.9
C 8 128 12457 68.08 746 748 172.0
C 8 112 6038 30.76 746 748 172.0
C 13 61 5645 28.47 746 748 172.0
D 2 136 144036 802.24 731 709 178.7
D 1 52 128109 713.09 731 709 178.7
D 7 71 99878 555.07 731 709 178.7

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