ASTROSAT CZTI

Data Quality Report

Orbit 14273

Creation date: 2024-06-27T16:52:46.366451
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/AS1G08_014T01_9000002104_14273cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14273cztM0_level2_quad_clean.evt
Size (bytes)527,094,72082,719,360
Size502.7 MB 78.9 MB
Events in quadrant A3,443,978527,284
Events in quadrant B3,838,988522,296
Events in quadrant C3,471,763500,604
Events in quadrant D4,755,460488,934

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141293
B0154262
C0140452
D0184482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66761331.992211%
B66762353.520072%
C6676961.437987%
D66762563.834632%

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 7747 6677 0 0 0.00% 0.00%
B 7747 6677 49 49 0.63% 0.73%
C 7747 6678 0 0 0.00% 0.00%
D 7747 6678 96 96 1.24% 1.44%

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 12 189 91388 522.17 865 847 173.4
A 15 222 12851 69.23 865 847 173.4
A 8 15 12091 64.85 865 847 173.4
B 0 229 334583 2067.28 845 825 161.4
B 10 245 125376 771.46 845 825 161.4
B 0 189 27164 163.14 845 825 161.4
C 3 233 258427 1358.68 824 831 189.6
C 13 61 5715 25.76 824 831 189.6
C 3 202 1932 5.81 824 831 189.6
D 5 222 639105 3276.54 827 808 194.8
D 10 199 269946 1381.55 827 808 194.8
D 13 122 269766 1380.63 827 808 194.8

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