ASTROSAT CZTI

Data Quality Report

Orbit 28469

Creation date: 2024-06-27T19:52:03.389057
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_101T21_9000004090_28469cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28469cztM0_level2_quad_clean.evt
Size (bytes)522,221,760123,684,480
Size498.0 MB 118.0 MB
Events in quadrant A4,021,165829,380
Events in quadrant B3,122,845864,728
Events in quadrant C3,290,065824,115
Events in quadrant D4,956,115790,067

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159110
B0132390
C0135280
D0187730

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62754447.075697%
B6276520.828553%
C6276791.258764%
D62765288.413002%

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 7340 6275 375 375 5.11% 5.98%
B 7341 6276 3 3 0.04% 0.05%
C 7341 6276 0 0 0.00% 0.00%
D 7341 6276 543 543 7.40% 8.65%

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 15 174 1102829 7311.34 756 741 150.7
A 13 254 8897 54.1 756 741 150.7
A 3 137 7298 43.5 756 741 150.7
B 5 255 79511 547.19 760 740 144.0
B 10 245 39782 271.21 760 740 144.0
B 12 111 17619 117.25 760 740 144.0
C 7 247 172497 1002.42 738 740 171.3
C 14 238 121624 705.51 738 740 171.3
C 3 233 116984 678.43 738 740 171.3
D 8 195 1157690 6675.09 737 718 173.3
D 1 52 846556 4880.02 737 718 173.3
D 2 250 118855 681.58 737 718 173.3

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