ASTROSAT CZTI

Data Quality Report

Orbit 02228

Creation date: 2024-06-27T14:15:26.469125
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/AS1T01_072T05_9000000344_02228cztM0_level2.evt modeM0/AS1T01_072T05_9000000344_02228cztM0_level2_quad_clean.evt
Size (bytes)417,337,92059,518,080
Size398.0 MB 56.8 MB
Events in quadrant A3,053,005341,267
Events in quadrant B3,096,159345,416
Events in quadrant C3,043,896343,498
Events in quadrant D3,022,196336,766

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131292
B0132132
C0130592
D0132762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6235831.331195%
B6235801.283079%
C6235781.251002%
D6235801.283079%

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 7475 6236 0 0 0.00% 0.00%
B 7475 6236 0 0 0.00% 0.00%
C 7475 6236 0 0 0.00% 0.00%
D 7475 6236 8 8 0.11% 0.13%

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 3 1 22227 133.62 787 769 160.6
A 12 194 8746 49.67 787 769 160.6
A 0 226 8708 49.44 787 769 160.6
B 15 85 11810 72.42 797 779 152.3
B 12 111 10521 63.96 797 779 152.3
B 4 200 9196 55.26 797 779 152.3
C 5 234 17424 92.1 771 778 180.7
C 13 61 7093 34.94 771 778 180.7
C 0 64 3851 17.0 771 778 180.7
D 12 79 63255 343.47 763 743 182.0
D 2 63 48009 259.7 763 743 182.0
D 15 194 14099 73.38 763 743 182.0

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