ASTROSAT CZTI

Data Quality Report

Orbit 04673

Creation date: 2024-06-27T14:45:27.234751
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/AS1G05_215T01_9000000586_04673cztM0_level2.evt modeM0/AS1G05_215T01_9000000586_04673cztM0_level2_quad_clean.evt
Size (bytes)701,386,56080,205,120
Size668.9 MB 76.5 MB
Events in quadrant A2,963,604551,739
Events in quadrant B3,086,990564,084
Events in quadrant C2,970,572553,853
Events in quadrant D11,792,571316,840

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132373
B0135682
C0132332
D0392622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6311300.475360%
B6311400.633814%
C6311490.776422%
D6311354956.235145%

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 7521 6312 0 0 0.00% 0.00%
B 7521 6312 0 0 0.00% 0.00%
C 7521 6312 0 0 0.00% 0.00%
D 7521 6312 3085 3085 41.02% 48.88%

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 8 15 23225 147.1 760 746 152.8
A 13 14 8345 49.73 760 746 152.8
A 12 194 7491 44.14 760 746 152.8
B 15 204 66949 454.8 771 754 145.5
B 0 219 15931 104.28 771 754 145.5
B 12 111 13625 88.43 771 754 145.5
C 9 54 14179 76.89 753 758 174.6
C 9 247 8686 45.42 753 758 174.6
C 13 61 5980 29.92 753 758 174.6
D 8 112 8568110 69866.96 513 497 122.6
D 2 63 856775 6982.76 513 497 122.6
D 13 239 218095 1774.46 513 497 122.6

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