ASTROSAT CZTI

Data Quality Report

Orbit 43371

Creation date: 2024-06-27T22:51:09.064378
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/AS1A09_143T01_9000005870_43371cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43371cztM0_level2_quad_clean.evt
Size (bytes)287,818,56088,934,400
Size274.5 MB 84.8 MB
Events in quadrant A2,931,992590,676
Events in quadrant B2,485,170612,165
Events in quadrant C2,498,905592,878
Events in quadrant D2,343,235542,385

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118272
B0106202
C0105742
D0107292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5061701.383126%
B5061100.197589%
C5061200.395179%
D5060230.454545%

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 7003 5062 51 51 0.73% 1.01%
B 7003 5062 3 3 0.04% 0.06%
C 7003 5062 16 16 0.23% 0.32%
D 7002 5061 16 16 0.23% 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 10 83 550900 4736.25 563 550 116.2
A 15 237 176300 1512.48 563 550 116.2
A 13 6 12555 103.31 563 550 116.2
B 0 189 201253 1852.13 565 550 108.4
B 4 173 27135 245.33 565 550 108.4
B 3 112 18959 169.88 565 550 108.4
C 15 214 209719 1599.06 559 562 130.8
C 0 207 61144 463.16 559 562 130.8
C 3 233 37992 286.16 559 562 130.8
D 1 47 38007 280.63 553 538 133.5
D 12 233 34364 253.34 553 538 133.5
D 5 32 32191 237.07 553 538 133.5

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