ASTROSAT CZTI

Data Quality Report

Orbit 29329

Creation date: 2024-06-27T20:02:47.512160
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/AS1A10_050T03_9000004216_29329cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29329cztM0_level2_quad_clean.evt
Size (bytes)855,308,16061,352,640
Size815.7 MB 58.5 MB
Events in quadrant A3,289,473411,872
Events in quadrant B3,765,329412,649
Events in quadrant C3,440,232400,418
Events in quadrant D14,965,676176,008

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136571
B0150691
C0139521
D0488805

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65181201.841056%
B65191872.868538%
C65191632.500383%
D6518643398.695919%

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 7263 6519 7 7 0.10% 0.11%
B 7264 6520 23 23 0.32% 0.35%
C 7264 6520 0 0 0.00% 0.00%
D 7263 6518 4617 4617 63.57% 70.83%

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 13 40467 236.86 831 813 167.4
A 1 113 31699 184.49 831 813 167.4
A 13 254 15960 90.48 831 813 167.4
B 0 190 175750 1109.11 820 801 157.7
B 10 245 85926 539.66 820 801 157.7
B 5 255 76387 479.18 820 801 157.7
C 3 233 192173 1025.38 793 800 186.6
C 14 238 130381 694.3 793 800 186.6
C 2 114 16210 82.57 793 800 186.6
D 12 33 8779716 92985.46 393 383 94.4
D 12 17 1998838 21166.44 393 383 94.4
D 1 52 1992749 21101.95 393 383 94.4

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