ASTROSAT CZTI

Data Quality Report

Orbit 05169

Creation date: 2024-06-27T14:52:14.344095
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/AS1G05_214T01_9000000652_05169cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05169cztM0_level2_quad_clean.evt
Size (bytes)499,633,92078,488,640
Size476.5 MB 74.9 MB
Events in quadrant A3,784,126469,539
Events in quadrant B3,741,003476,348
Events in quadrant C3,546,003476,351
Events in quadrant D3,567,900449,640

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158873
B0155472
C0153162
D0156562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72482643.642384%
B72482273.131898%
C72481552.138521%
D72481762.428256%

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 9418 7250 25 25 0.27% 0.34%
B 9418 7250 0 0 0.00% 0.00%
C 9418 7250 2 2 0.02% 0.03%
D 9418 7250 23 23 0.24% 0.32%

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 50 123378 649.56 919 898 188.6
A 0 247 90280 474.03 919 898 188.6
A 4 2 23503 119.88 919 898 188.6
B 4 80 58358 318.31 931 908 180.5
B 15 204 31137 167.49 931 908 180.5
B 4 239 23281 123.96 931 908 180.5
C 1 16 44259 208.44 895 901 208.0
C 14 225 9568 41.66 895 901 208.0
C 13 61 7191 30.24 895 901 208.0
D 2 33 66403 297.17 891 864 220.5
D 2 136 50615 225.59 891 864 220.5
D 2 221 28555 125.56 891 864 220.5

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