ASTROSAT CZTI

Data Quality Report

Orbit 14478

Creation date: 2024-06-27T16:55:44.668880
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/AS1G08_083T01_9000002134_14478cztM0_level2.evt modeM0/AS1G08_083T01_9000002134_14478cztM0_level2_quad_clean.evt
Size (bytes)571,844,16096,085,440
Size545.4 MB 91.6 MB
Events in quadrant A4,319,318589,170
Events in quadrant B3,984,843593,437
Events in quadrant C3,832,847596,880
Events in quadrant D4,638,695574,635

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182844
B0170793
C0166513
D0194123

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79856127.664371%
B79853974.971822%
C79853043.807138%
D79855426.787727%

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 8832 7989 186 186 2.11% 2.33%
B 8832 7989 0 0 0.00% 0.00%
C 8832 7989 0 0 0.00% 0.00%
D 8832 7989 220 220 2.49% 2.75%

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 14 111 652188 3424.35 934 911 190.2
A 12 189 57766 298.94 934 911 190.2
A 0 226 8165 38.14 934 911 190.2
B 15 222 61767 334.29 951 924 182.0
B 0 189 51079 275.56 951 924 182.0
B 5 32 47222 254.37 951 924 182.0
C 3 233 162879 750.99 933 932 215.6
C 0 207 21808 96.81 933 932 215.6
C 7 247 11764 50.23 933 932 215.6
D 10 199 383702 1748.57 913 885 218.9
D 15 0 345680 1574.9 913 885 218.9
D 12 110 302970 1379.82 913 885 218.9

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