ASTROSAT CZTI

Data Quality Report

Orbit 40559

Creation date: 2024-06-27T22:17:34.311572
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/AS1A12_054T02_9000005550_40559cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40559cztM0_level2_quad_clean.evt
Size (bytes)333,146,88089,334,720
Size317.7 MB 85.2 MB
Events in quadrant A3,016,401617,058
Events in quadrant B3,149,321632,785
Events in quadrant C2,723,804604,890
Events in quadrant D3,005,937458,947

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123123
B0129082
C0116432
D0127862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A559190.160973%
B5591200.357718%
C5591360.643892%
D5591111419.924879%

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 7353 5592 4 4 0.05% 0.07%
B 7353 5592 13 13 0.18% 0.23%
C 7353 5592 30 30 0.41% 0.54%
D 7353 5592 27 27 0.37% 0.48%

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 505717 4062.24 608 596 124.3
A 6 10 90146 720.17 608 596 124.3
A 12 189 56543 449.93 608 596 124.3
B 3 112 714304 6115.94 604 588 116.7
B 4 170 34884 293.89 604 588 116.7
B 12 111 14945 123.03 604 588 116.7
C 15 214 244062 1749.63 590 597 139.2
C 14 254 131520 940.86 590 597 139.2
C 0 10 21851 152.74 590 597 139.2
D 12 191 261164 1985.42 535 521 131.3
D 2 250 197939 1503.81 535 521 131.3
D 12 79 168945 1282.95 535 521 131.3

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