ASTROSAT CZTI

Data Quality Report

Orbit 10503

Creation date: 2024-06-27T16:00:15.692481
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/AS1A03_127T02_9000001522_10503cztM0_level2.evt modeM0/AS1A03_127T02_9000001522_10503cztM0_level2_quad_clean.evt
Size (bytes)490,354,560116,190,720
Size467.6 MB 110.8 MB
Events in quadrant A3,829,130726,614
Events in quadrant B3,983,890761,164
Events in quadrant C2,822,047805,683
Events in quadrant D3,786,078784,372

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02010
B02010
C02010
D0188

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245418560
B0237447788
C0185055573
D0222346587

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018654
B018651
C018653
D018348

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6070400.658979%
B62272664.271720%
C640490.140537%
D6546430.656890%

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 7799 6490 6 6 0.08% 0.09%
B 7800 6576 175 175 2.24% 2.66%
C 7799 6711 0 0 0.00% 0.00%
D 7801 6731 21 21 0.27% 0.31%

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 15 239 1023650 7280.67 694 677 140.5
A 3 80 73505 518.33 694 677 140.5
A 5 16 22831 157.67 694 677 140.5
B 4 239 983082 7251.0 716 699 135.5
B 11 51 86097 630.32 716 699 135.5
B 0 214 49444 359.79 716 699 135.5
C 13 61 5426 28.15 721 722 167.1
C 14 234 4485 22.52 721 722 167.1
C 0 207 4275 21.27 721 722 167.1
D 2 16 344906 1970.85 731 710 174.6
D 1 52 228670 1305.29 731 710 174.6
D 8 195 188482 1075.17 731 710 174.6

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