ASTROSAT CZTI

Data Quality Report

Orbit 42044

Creation date: 2024-06-27T22:36:09.311982
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/AS1A12_037T01_9000005736_42044cztM0_level2.fits modeM0/AS1A12_037T01_9000005736_42044cztM0_level2_quad_clean.evt
Size (bytes)411,511,68095,123,520
Size392.4 MB 90.7 MB
Events in quadrant A4,628,117623,816
Events in quadrant B2,773,738663,905
Events in quadrant C2,777,603631,026
Events in quadrant D4,590,370545,741

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173882
B0123502
C0119982
D0177332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59533415.728204%
B5953290.487149%
C595330.050395%
D59534467.492021%

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 7356 5954 259 259 3.52% 4.35%
B 7356 5954 16 16 0.22% 0.27%
C 7356 5954 0 0 0.00% 0.00%
D 7356 5954 447 447 6.08% 7.51%

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 15 223 1104303 8190.23 647 633 134.8
A 10 83 621510 4607.47 647 633 134.8
A 15 222 305865 2265.1 647 633 134.8
B 5 255 68869 536.29 651 632 127.2
B 15 85 45697 354.18 651 632 127.2
B 0 190 44708 346.4 651 632 127.2
C 15 214 254951 1689.75 639 643 150.5
C 15 111 21833 140.8 639 643 150.5
C 12 249 8157 49.93 639 643 150.5
D 12 233 1272364 8321.18 620 602 152.8
D 5 32 288986 1886.91 620 602 152.8
D 1 52 273941 1788.47 620 602 152.8

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