ASTROSAT CZTI

Data Quality Report

Orbit 44299

Creation date: 2024-06-27T23:01:47.490761
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/AS1A13_004T13_9000005988_44299cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44299cztM0_level2_quad_clean.evt
Size (bytes)474,909,120112,919,040
Size452.9 MB 107.7 MB
Events in quadrant A5,051,631768,198
Events in quadrant B3,996,643779,817
Events in quadrant C3,261,804751,119
Events in quadrant D4,769,774671,369

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204192
B0162412
C0139912
D0184122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64372543.945938%
B64372734.241106%
C64371031.600124%
D64374396.819947%

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 7582 6437 33 33 0.44% 0.51%
B 7582 6437 72 72 0.95% 1.12%
C 7582 6437 24 24 0.32% 0.37%
D 7582 6437 290 290 3.82% 4.51%

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 10 83 1632917 10160.91 781 766 160.6
A 15 223 309768 1923.68 781 766 160.6
A 13 248 35971 219.17 781 766 160.6
B 5 255 363528 2452.11 765 741 147.9
B 0 200 164636 1107.78 765 741 147.9
B 0 190 150190 1010.14 765 741 147.9
C 14 254 197070 1101.61 757 763 178.2
C 3 233 50233 277.61 757 763 178.2
C 1 3 39448 217.09 757 763 178.2
D 13 249 822410 4416.13 752 731 186.1
D 1 52 182596 977.44 752 731 186.1
D 10 199 139024 743.26 752 731 186.1

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