ASTROSAT CZTI

Data Quality Report

Orbit 10867

Creation date: 2024-06-27T16:04:54.458081
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/AS1A03_118T01_9000001570_10867cztM0_level2.evt modeM0/AS1A03_118T01_9000001570_10867cztM0_level2_quad_clean.evt
Size (bytes)549,489,600103,112,640
Size524.0 MB 98.3 MB
Events in quadrant A5,240,943651,414
Events in quadrant B4,376,847678,033
Events in quadrant C3,092,952690,132
Events in quadrant D3,488,130648,002

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202593
B0172672
C0135712
D0147382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65245328.154506%
B65243845.885960%
C6524490.751073%
D65241802.759044%

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 7614 6524 301 301 3.95% 4.61%
B 7614 6525 237 237 3.11% 3.63%
C 7614 6524 0 0 0.00% 0.00%
D 7614 6524 47 47 0.62% 0.72%

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 5 2115146 13331.43 780 765 158.6
A 15 223 57837 359.85 780 765 158.6
A 15 239 26889 164.72 780 765 158.6
B 4 239 1223017 8165.38 790 773 149.7
B 0 214 23334 150.72 790 773 149.7
B 15 204 17412 111.16 790 773 149.7
C 8 208 16398 86.61 785 789 180.2
C 14 234 7885 39.37 785 789 180.2
C 13 61 5602 26.71 785 789 180.2
D 1 52 163955 867.44 780 760 188.1
D 13 105 69606 365.94 780 760 188.1
D 2 14 61539 323.06 780 760 188.1

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