ASTROSAT CZTI

Data Quality Report

Orbit 03358

Creation date: 2024-06-27T14:27:59.635395
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/AS1G05_112T01_9000000452_03358cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03358cztM0_level2_quad_clean.evt
Size (bytes)449,654,40084,585,600
Size428.8 MB 80.7 MB
Events in quadrant A2,944,640535,466
Events in quadrant B4,182,670531,929
Events in quadrant C3,054,778541,058
Events in quadrant D3,004,912510,479

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130703
B0166392
C0132982
D0134022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6335310.489345%
B63351973.109708%
C6335210.331492%
D6335350.552486%

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 7575 6336 0 0 0.00% 0.00%
B 7575 6336 92 92 1.21% 1.45%
C 7575 6336 10 10 0.13% 0.16%
D 7575 6336 24 24 0.32% 0.38%

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 0 226 8041 47.32 761 745 154.2
A 12 194 7869 46.21 761 745 154.2
A 0 31 6308 36.08 761 745 154.2
B 15 204 706121 4769.99 769 753 147.9
B 5 70 214855 1447.85 769 753 147.9
B 14 167 127760 858.87 769 753 147.9
C 14 223 37454 207.56 755 760 176.8
C 1 16 35953 199.07 755 760 176.8
C 6 80 11237 59.26 755 760 176.8
D 13 223 117810 648.13 741 721 180.7
D 5 233 26369 141.97 741 721 180.7
D 13 174 17093 90.63 741 721 180.7

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