ASTROSAT CZTI

Data Quality Report

Orbit 47619

Creation date: 2024-07-18T17:18:19.023190
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_071T01_9000006340_47619cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47619cztM0_level2_quad_clean.evt
Size (bytes)478,008,000105,171,840
Size455.9 MB 100.3 MB
Events in quadrant A6,975,310706,316
Events in quadrant B3,135,548729,623
Events in quadrant C3,146,842693,993
Events in quadrant D3,957,898623,365

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255531
B0132892
C0137051
D0157581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61703375.461912%
B61691121.815529%
C61691412.285622%
D61703876.272285%

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 7325 6171 109 109 1.49% 1.77%
B 7324 6170 27 27 0.37% 0.44%
C 7324 6170 66 66 0.90% 1.07%
D 7325 6171 243 243 3.32% 3.94%

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 3435783 22819.91 721 706 150.5
A 9 191 607437 4030.63 721 706 150.5
A 13 248 114359 755.02 721 706 150.5
B 5 172 84988 604.56 712 690 139.4
B 0 200 53189 376.5 712 690 139.4
B 5 32 46502 328.55 712 690 139.4
C 1 3 330630 2001.71 702 706 164.8
C 3 233 75607 454.44 702 706 164.8
C 14 254 6463 34.93 702 706 164.8
D 12 1 583377 3393.15 695 676 171.7
D 2 249 399833 2324.35 695 676 171.7
D 2 165 159884 927.09 695 676 171.7

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