ASTROSAT CZTI

Data Quality Report

Orbit 28149

Creation date: 2024-06-27T19:48:35.687055
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/AS1A10_045T04_9000004066_28149cztM0_level2.evt modeM0/AS1A10_045T04_9000004066_28149cztM0_level2_quad_clean.evt
Size (bytes)600,598,08093,049,920
Size572.8 MB 88.7 MB
Events in quadrant A3,299,402601,616
Events in quadrant B3,884,734612,649
Events in quadrant C3,437,412586,370
Events in quadrant D7,105,082541,026

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142720
B0159880
C0146590
D0260070

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6835620.907096%
B68351291.887345%
C6835981.433797%
D68366038.820948%

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 8735 6836 0 0 0.00% 0.00%
B 8735 6836 14 14 0.16% 0.20%
C 8735 6837 0 0 0.00% 0.00%
D 8736 6838 450 450 5.15% 6.58%

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 13 254 10896 58.32 855 839 172.4
A 3 137 8261 43.04 855 839 172.4
A 0 226 7163 36.67 855 839 172.4
B 10 245 426041 2608.63 848 825 163.0
B 15 32 41860 251.74 848 825 163.0
B 4 80 33365 199.63 848 825 163.0
C 14 238 130749 670.92 822 827 193.6
C 3 233 98917 506.54 822 827 193.6
C 13 61 5645 24.88 822 827 193.6
D 7 223 2136672 11184.98 792 769 191.0
D 1 52 1046687 5477.11 792 769 191.0
D 5 222 252629 1318.9 792 769 191.0

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