ASTROSAT CZTI

Data Quality Report

Orbit 45541

Creation date: 2024-06-27T23:13:23.661404
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/AS1A13_071T02_9000006106_45541cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45541cztM0_level2_quad_clean.evt
Size (bytes)942,897,600213,007,680
Size899.2 MB 203.1 MB
Events in quadrant A14,804,6881,836,176
Events in quadrant B10,744,1631,836,674
Events in quadrant C8,305,8281,828,698
Events in quadrant D9,62337

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0565325
B0440393
C0378356
D0480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03620
B03620
C03620
D03620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A178995753.212470%
B178999325.206995%
C178972821.575683%
D2400.000000%

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 19529 17903 56 56 0.29% 0.31%
B 19529 17903 355 355 1.82% 1.98%
C 19529 17902 68 68 0.35% 0.38%
D 24 24 0 0 0.00% 0.00%

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 10 83 6420065 15529.51 2001 1954 413.3
A 13 248 524713 1264.89 2001 1954 413.3
A 15 174 87921 208.01 2001 1954 413.3
B 15 201 1636958 4130.56 1977 1913 395.8
B 0 183 415990 1046.07 1977 1913 395.8
B 5 172 355550 893.38 1977 1913 395.8
C 14 254 330624 706.2 1976 1981 465.4
C 12 2 259825 554.06 1976 1981 465.4
C 3 233 20746 40.32 1976 1981 465.4
D 11 241 412 299.14 2 2 1.4
D 2 234 138 99.23 2 2 1.4
D 2 249 135 97.04 2 2 1.4

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