ASTROSAT CZTI

Data Quality Report

Orbit 06122

Creation date: 2024-06-27T15:03:02.879674
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/AS1A02_104T01_9000000794_06122cztM0_level2.evt modeM0/AS1A02_104T01_9000000794_06122cztM0_level2_quad_clean.evt
Size (bytes)606,271,68090,120,960
Size578.2 MB 85.9 MB
Events in quadrant A7,630,475547,135
Events in quadrant B3,561,940597,590
Events in quadrant C3,127,755596,301
Events in quadrant D3,623,650557,352

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269543
B0146552
C0134082
D0149552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A616898916.034371%
B61681422.302205%
C6168480.778210%
D61682093.388457%

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 7498 6169 602 602 8.03% 9.76%
B 7498 6169 48 48 0.64% 0.78%
C 7498 6169 0 0 0.00% 0.00%
D 7498 6169 95 95 1.27% 1.54%

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 4720744 30626.76 749 735 154.1
A 13 251 10724 64.82 749 735 154.1
A 0 50 8411 49.81 749 735 154.1
B 3 64 351509 2281.19 795 777 153.7
B 15 204 36053 229.44 795 777 153.7
B 4 81 34944 222.22 795 777 153.7
C 9 68 58321 317.06 780 786 181.5
C 9 54 10667 54.45 780 786 181.5
C 1 16 10488 53.47 780 786 181.5
D 13 169 300465 1587.24 764 740 188.8
D 2 33 269946 1425.62 764 740 188.8
D 8 195 35380 183.44 764 740 188.8

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