ASTROSAT CZTI

Data Quality Report

Orbit 07080

Creation date: 2024-06-27T15:15:18.514333
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/AS1G06_164T01_9000000968_07080cztM0_level2.evt modeM0/AS1G06_164T01_9000000968_07080cztM0_level2_quad_clean.evt
Size (bytes)293,042,88066,648,960
Size279.5 MB 63.6 MB
Events in quadrant A2,018,082437,298
Events in quadrant B2,354,251441,513
Events in quadrant C2,174,099416,014
Events in quadrant D2,022,412408,199

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091321
B0100141
C097581
D093691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4478310.692273%
B4478430.960250%
C4478962.143814%
D4479330.736772%

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 4478 4478 0 0 0.00% 0.00%
B 4478 4478 13 13 0.29% 0.29%
C 4478 4478 69 69 1.54% 1.54%
D 4479 4479 12 12 0.27% 0.27%

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 8 15 51598 488.76 509 498 104.6
A 0 226 4913 42.23 509 498 104.6
A 12 194 4733 40.51 509 498 104.6
B 0 219 319724 3300.46 510 498 96.7
B 0 214 45603 466.34 510 498 96.7
B 12 111 9198 89.95 510 498 96.7
C 9 68 271780 2408.12 486 487 112.7
C 4 254 5207 41.9 486 487 112.7
C 13 61 3851 29.86 486 487 112.7
D 2 14 45453 370.91 492 476 121.3
D 14 34 34257 278.58 492 476 121.3
D 13 169 30640 248.75 492 476 121.3

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