ASTROSAT CZTI

Data Quality Report

Orbit 47037

Creation date: 2024-06-27T23:31:01.724532
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/AS1C09_005T01_9000006296_47037cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47037cztM0_level2_quad_clean.evt
Size (bytes)620,907,84096,615,360
Size592.1 MB 92.1 MB
Events in quadrant A6,155,159682,449
Events in quadrant B6,298,243641,767
Events in quadrant C2,868,091685,820
Events in quadrant D7,168,328470,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226981
B0229912
C0131481
D0257461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63761632.556462%
B637587713.756863%
C6375761.192157%
D6376165625.972396%

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 7346 6377 9 9 0.12% 0.14%
B 7345 6376 522 522 7.11% 8.19%
C 7345 6376 9 9 0.12% 0.14%
D 7346 6377 1361 1361 18.53% 21.34%

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 3305501 22350.32 703 686 147.9
A 9 191 107750 724.07 703 686 147.9
A 13 248 19975 130.45 703 686 147.9
B 3 112 2548593 19219.08 672 651 132.6
B 5 172 973677 7339.51 672 651 132.6
B 0 200 55064 410.43 672 651 132.6
C 14 254 81444 486.89 703 706 165.8
C 12 2 17377 100.54 703 706 165.8
C 1 3 13925 79.72 703 706 165.8
D 1 52 4819099 34054.23 565 547 141.5
D 13 249 36979 257.47 565 547 141.5
D 2 249 28548 197.89 565 547 141.5

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