ASTROSAT CZTI

Data Quality Report

Orbit 23711

Creation date: 2024-06-27T18:57:47.256010
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/AS1A07_054T01_9000003504_23711cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23711cztM0_level2_quad_clean.evt
Size (bytes)486,100,800130,279,680
Size463.6 MB 124.2 MB
Events in quadrant A2,982,761888,279
Events in quadrant B3,246,541912,063
Events in quadrant C3,087,033873,518
Events in quadrant D4,967,120821,743

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131772
B0138812
C0133052
D0192102

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6453100.154967%
B6453340.526887%
C6453630.976290%
D64532113.269797%

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 7623 6454 0 0 0.00% 0.00%
B 7623 6454 4 4 0.05% 0.06%
C 7623 6454 0 0 0.00% 0.00%
D 7623 6454 155 155 2.03% 2.40%

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 10181 61.49 773 757 153.3
A 3 137 6650 38.45 773 757 153.3
A 0 226 6643 38.41 773 757 153.3
B 0 229 133670 914.04 783 765 145.4
B 14 207 18382 121.16 783 765 145.4
B 12 111 17142 112.63 783 765 145.4
C 14 238 122890 698.24 756 764 174.9
C 10 23 12501 67.1 756 764 174.9
C 13 61 5475 26.93 756 764 174.9
D 1 52 1969697 11043.1 741 719 178.3
D 12 233 83996 467.06 741 719 178.3
D 9 35 80737 448.78 741 719 178.3

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