ASTROSAT CZTI

Data Quality Report

Orbit 54383

Creation date: 2025-10-17T09:38:52.397243
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/AS1A14_126T19_9000006518_54383cztM0_level2.fits modeM0/AS1A14_126T19_9000006518_54383cztM0_level2_quad_clean.evt
Size (bytes)772,997,76080,366,400
Size737.2 MB 76.6 MB
Events in quadrant A3,087,629631,432
Events in quadrant B7,233,612522,502
Events in quadrant C8,310,666441,753
Events in quadrant D9,470,633377,304

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142502
B0260862
C0293382
D0327383

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6596901.364463%
B6596168125.485143%
C6596204130.942996%
D6595242536.770281%

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 7621 6597 52 52 0.68% 0.79%
B 7621 6596 1236 1236 16.22% 18.74%
C 7621 6597 1837 1837 24.10% 27.85%
D 7620 6595 2076 2076 27.24% 31.48%

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 0 8 276380 1583.96 702 683 174.1
A 8 246 40862 230.84 702 683 174.1
A 3 62 21128 117.46 702 683 174.1
B 10 14 4580857 34540.81 617 594 132.6
B 0 213 63586 475.04 617 594 132.6
B 0 171 57979 432.75 617 594 132.6
C 1 241 4775947 29328.36 590 584 162.8
C 13 3 563900 3459.66 590 584 162.8
C 14 254 354013 2170.62 590 584 162.8
D 8 176 6656437 44470.85 518 495 149.7
D 2 172 265955 1773.64 518 495 149.7
D 3 12 223660 1491.05 518 495 149.7

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