ASTROSAT CZTI

Data Quality Report

Orbit 43826

Creation date: 2024-06-27T22:56:16.614517
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_018T01_9000005906_43826cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43826cztM0_level2_quad_clean.evt
Size (bytes)599,990,400123,952,320
Size572.2 MB 118.2 MB
Events in quadrant A5,047,090844,673
Events in quadrant B5,081,792840,288
Events in quadrant C4,370,574831,429
Events in quadrant D7,119,805706,367

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203530
B0201850
C0180850
D0264441

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7618700.918876%
B76193304.331277%
C76191031.351883%
D761877410.160147%

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 7618 7618 29 29 0.38% 0.38%
B 7619 7619 256 256 3.36% 3.36%
C 7619 7619 81 81 1.06% 1.06%
D 7618 7618 668 668 8.77% 8.77%

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 1054608 5760.24 875 857 182.9
A 15 223 415527 2266.76 875 857 182.9
A 13 248 101451 549.89 875 857 182.9
B 5 235 884739 5214.61 860 835 169.5
B 5 172 291225 1713.16 860 835 169.5
B 7 205 141845 831.89 860 835 169.5
C 3 233 346069 1730.0 848 854 199.5
C 15 173 257910 1288.2 848 854 199.5
C 15 158 161778 806.45 848 854 199.5
D 5 235 1277802 6013.73 828 801 212.3
D 7 204 377173 1772.43 828 801 212.3
D 12 2 303573 1425.83 828 801 212.3

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