ASTROSAT CZTI

Data Quality Report

Orbit 33122

Creation date: 2024-06-27T20:45:14.059348
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/AS1A11_046T06_9000004764_33122cztM0_level2.evt modeM0/AS1A11_046T06_9000004764_33122cztM0_level2_quad_clean.evt
Size (bytes)427,075,20050,601,600
Size407.3 MB 48.3 MB
Events in quadrant A2,108,848317,776
Events in quadrant B2,418,999319,009
Events in quadrant C2,697,739302,521
Events in quadrant D5,394,889267,691

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093172
B0100942
C0109202
D0193412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A462060.129870%
B4620471.017316%
C4620781.688312%
D462055612.034632%

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 6503 4621 0 0 0.00% 0.00%
B 6503 4621 24 24 0.37% 0.52%
C 6503 4621 63 63 0.97% 1.36%
D 6503 4621 617 617 9.49% 13.35%

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 6 9529 81.4 542 532 110.5
A 13 254 9463 80.81 542 532 110.5
A 3 137 5126 41.57 542 532 110.5
B 5 172 151569 1437.79 544 529 105.1
B 0 189 19336 179.03 544 529 105.1
B 0 190 18872 174.61 544 529 105.1
C 0 10 325866 2683.22 523 527 121.2
C 7 221 229782 1890.77 523 527 121.2
C 9 187 39807 323.96 523 527 121.2
D 7 223 2137055 15809.68 502 492 135.1
D 8 195 457005 3378.01 502 492 135.1
D 2 250 337113 2490.86 502 492 135.1

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