ASTROSAT CZTI

Data Quality Report

Orbit 42516

Creation date: 2024-06-27T22:41:06.474304
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/AS1C07_001T10_9000005806_42516cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42516cztM0_level2_quad_clean.evt
Size (bytes)300,205,44087,491,520
Size286.3 MB 83.4 MB
Events in quadrant A2,909,178591,838
Events in quadrant B2,496,608602,089
Events in quadrant C2,405,566574,476
Events in quadrant D2,899,385520,064

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118302
B0108642
C0104303
D0122922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5153150.291093%
B5153110.213468%
C515240.077640%
D51521813.513199%

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 7095 5154 6 6 0.08% 0.12%
B 7095 5154 3 3 0.04% 0.06%
C 7094 5153 0 0 0.00% 0.00%
D 7094 5153 149 149 2.10% 2.89%

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 546575 4723.65 566 555 115.6
A 12 189 89766 771.77 566 555 115.6
A 2 79 51508 440.8 566 555 115.6
B 0 229 160353 1494.3 560 545 106.9
B 0 245 62144 575.99 560 545 106.9
B 5 255 44640 412.31 560 545 106.9
C 15 214 234888 1863.65 544 549 125.7
C 0 239 32211 251.8 544 549 125.7
C 12 249 14499 110.94 544 549 125.7
D 1 47 297889 2263.06 540 523 131.4
D 13 249 90904 687.83 540 523 131.4
D 12 6 88022 665.9 540 523 131.4

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