ASTROSAT CZTI

Data Quality Report

Orbit 30569

Creation date: 2024-06-27T20:17:06.437934
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_053T23_9000004404_30569cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30569cztM0_level2_quad_clean.evt
Size (bytes)553,302,720105,442,560
Size527.7 MB 100.6 MB
Events in quadrant A3,458,299702,486
Events in quadrant B5,198,589703,458
Events in quadrant C3,963,154658,564
Events in quadrant D3,690,617669,709

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142602
B0200792
C0159912
D0149662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6583600.911439%
B65831171.777305%
C65834596.972505%
D6583691.048154%

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 7783 6584 0 0 0.00% 0.00%
B 7783 6584 3 3 0.04% 0.05%
C 7783 6584 28 28 0.36% 0.43%
D 7783 6584 17 17 0.22% 0.26%

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 8 192 22374 121.64 890 877 176.7
A 13 254 11442 59.78 890 877 176.7
A 3 137 8332 42.18 890 877 176.7
B 6 159 1745314 10549.04 872 853 165.4
B 12 111 19697 113.95 872 853 165.4
B 11 111 18356 105.84 872 853 165.4
C 14 238 224049 1161.19 829 839 192.2
C 3 233 152669 789.86 829 839 192.2
C 14 254 124590 643.78 829 839 192.2
D 8 195 227824 1115.67 869 849 203.4
D 5 222 79997 389.04 869 849 203.4
D 2 250 57462 278.27 869 849 203.4

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