ASTROSAT CZTI

Data Quality Report

Orbit 44406

Creation date: 2024-06-27T23:03:13.877712
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_008T08_9000005998_44406cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44406cztM0_level2_quad_clean.evt
Size (bytes)617,808,960116,668,800
Size589.2 MB 111.3 MB
Events in quadrant A5,264,492807,853
Events in quadrant B3,826,488823,034
Events in quadrant C4,124,569780,337
Events in quadrant D9,071,807598,398

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219410
B0164900
C0177320
D0321310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7509460.612598%
B7509670.892263%
C75091211.611400%
D7509154920.628579%

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 7509 7509 6 6 0.08% 0.08%
B 7509 7509 26 26 0.35% 0.35%
C 7509 7509 139 139 1.85% 1.85%
D 7509 7509 1480 1480 19.71% 19.71%

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 1887324 10636.95 841 822 177.4
A 13 248 39015 215.35 841 822 177.4
A 0 243 26230 143.26 841 822 177.4
B 0 229 124149 749.44 840 816 164.6
B 5 235 57799 346.26 840 816 164.6
B 0 190 52859 316.24 840 816 164.6
C 15 158 635795 3294.72 815 820 192.7
C 14 254 180877 934.27 815 820 192.7
C 3 233 51974 265.43 815 820 192.7
D 5 235 1368868 7066.74 760 735 193.6
D 4 221 1089303 5622.72 760 735 193.6
D 5 222 872385 4502.28 760 735 193.6

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