ASTROSAT CZTI

Data Quality Report

Orbit 43405

Creation date: 2024-06-27T22:51:36.596415
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_018T01_9000005874_43405cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43405cztM0_level2_quad_clean.evt
Size (bytes)343,416,96086,598,720
Size327.5 MB 82.6 MB
Events in quadrant A3,632,271566,317
Events in quadrant B2,666,752598,925
Events in quadrant C2,492,010568,637
Events in quadrant D3,498,163508,255

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141302
B0117882
C0109922
D0142042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54302053.775322%
B5430400.736648%
C543040.073665%
D54301923.535912%

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 7133 5431 167 167 2.34% 3.07%
B 7133 5431 24 24 0.34% 0.44%
C 7133 5431 0 0 0.00% 0.00%
D 7133 5431 168 168 2.36% 3.09%

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 612716 5333.55 566 556 114.8
A 15 237 538128 4683.69 566 556 114.8
A 13 248 271237 2358.36 566 556 114.8
B 0 189 121961 1098.54 572 556 110.5
B 5 255 86308 775.93 572 556 110.5
B 0 186 67582 606.49 572 556 110.5
C 15 214 225482 1718.01 558 560 130.9
C 3 233 65407 495.32 558 560 130.9
C 15 159 17380 128.48 558 560 130.9
D 1 52 1020322 7590.11 550 533 134.4
D 2 249 108385 802.72 550 533 134.4
D 12 6 89902 665.16 550 533 134.4

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