ASTROSAT CZTI

Data Quality Report

Orbit 14946

Creation date: 2024-06-27T17:01:39.861323
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/AS1T02_056T01_9000002210_14946cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14946cztM0_level2_quad_clean.evt
Size (bytes)579,222,72056,764,800
Size552.4 MB 54.1 MB
Events in quadrant A2,409,679371,331
Events in quadrant B2,585,239371,120
Events in quadrant C2,492,873365,488
Events in quadrant D9,709,690253,873

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104922
B0110191
C0106191
D0323271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5078270.531705%
B5078490.964947%
C5078390.768019%
D5078266052.382828%

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 5959 5080 1 1 0.02% 0.02%
B 5959 5080 9 9 0.15% 0.18%
C 5959 5080 24 24 0.40% 0.47%
D 5959 5080 2474 2474 41.52% 48.70%

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 12 189 71834 574.08 602 588 124.1
A 3 1 5828 42.22 602 588 124.1
A 9 143 5637 40.68 602 588 124.1
B 10 16 63811 544.19 599 584 116.2
B 0 189 51851 441.25 599 584 116.2
B 3 64 42447 360.31 599 584 116.2
C 3 233 132105 966.5 583 586 136.1
C 10 22 87430 638.19 583 586 136.1
C 13 61 4189 26.48 583 586 136.1
D 7 254 7778400 69756.24 464 452 111.5
D 7 223 45604 404.94 464 452 111.5
D 13 249 36757 325.6 464 452 111.5

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