ASTROSAT CZTI

Data Quality Report

Orbit 24590

Creation date: 2024-06-27T19:07:37.447034
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/AS1T03_188T01_9000003612_24590cztM0_level2.evt modeM0/AS1T03_188T01_9000003612_24590cztM0_level2_quad_clean.evt
Size (bytes)555,082,56083,888,640
Size529.4 MB 80.0 MB
Events in quadrant A3,517,043536,289
Events in quadrant B4,184,029538,104
Events in quadrant C3,784,993507,218
Events in quadrant D4,877,605498,438

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147202
B0167982
C0156262
D0190612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601841.272534%
B66002694.075758%
C66001672.530303%
D66001552.348485%

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 7781 6601 0 0 0.00% 0.00%
B 7780 6600 106 106 1.36% 1.61%
C 7780 6600 18 18 0.23% 0.27%
D 7780 6600 70 70 0.90% 1.06%

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 6 16 11709 60.83 907 891 177.8
A 13 254 11230 58.14 907 891 177.8
A 10 255 10835 55.92 907 891 177.8
B 3 64 687782 4144.13 885 865 165.8
B 12 111 19259 110.97 885 865 165.8
B 7 202 17391 99.7 885 865 165.8
C 2 16 159011 807.69 853 860 195.8
C 7 247 151391 768.78 853 860 195.8
C 14 238 139116 706.09 853 860 195.8
D 8 195 1143336 5488.94 871 845 208.1
D 5 222 266527 1276.43 871 845 208.1
D 1 52 113413 540.82 871 845 208.1

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