ASTROSAT CZTI

Data Quality Report

Orbit 39059

Creation date: 2024-06-27T21:59:53.567338
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_077T06_9000005430_39059cztM0_level2.fits modeM0/AS1A12_077T06_9000005430_39059cztM0_level2_quad_clean.evt
Size (bytes)388,702,08090,374,400
Size370.7 MB 86.2 MB
Events in quadrant A4,138,028609,598
Events in quadrant B2,388,144634,243
Events in quadrant C4,311,378564,830
Events in quadrant D3,132,799551,458

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160403
B0108072
C0162662
D0131692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53731272.363670%
B537380.148893%
C53735009.305788%
D53731502.791736%

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 7076 5374 107 107 1.51% 1.99%
B 7076 5374 0 0 0.00% 0.00%
C 7076 5374 392 392 5.54% 7.29%
D 7076 5374 125 125 1.77% 2.33%

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 15 222 1110683 9251.24 589 577 120.0
A 10 83 417039 3470.65 589 577 120.0
A 13 248 300587 2500.18 589 577 120.0
B 0 230 27009 231.17 593 577 114.3
B 12 111 14204 119.18 593 577 114.3
B 11 111 13315 111.4 593 577 114.3
C 15 208 1890957 14446.15 561 565 130.9
C 15 214 216993 1653.92 561 565 130.9
C 0 10 8411 59.96 561 565 130.9
D 1 47 425640 3035.39 573 557 140.0
D 2 249 228333 1626.48 573 557 140.0
D 13 249 68626 486.06 573 557 140.0

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