ASTROSAT CZTI

Data Quality Report

Orbit 48013

Creation date: 2024-08-14T08:22:49.231228
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/AS1T05_218T01_9000006386_48013cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48013cztM0_level2_quad_clean.evt
Size (bytes)506,784,960103,173,120
Size483.3 MB 98.4 MB
Events in quadrant A8,807,382575,009
Events in quadrant B3,090,462745,191
Events in quadrant C3,015,795707,946
Events in quadrant D3,336,934638,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0308013
B0138122
C0137812
D0147262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6553138321.104837%
B6553440.671448%
C6553210.320464%
D6553490.747749%

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 7663 6554 1255 1255 16.38% 19.15%
B 7663 6554 9 9 0.12% 0.14%
C 7663 6554 10 10 0.13% 0.15%
D 7663 6554 42 42 0.55% 0.64%

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 3727093 27152.08 654 641 137.2
A 0 31 2495479 18178.16 654 641 137.2
A 14 248 37142 265.96 654 641 137.2
B 0 200 61041 415.28 730 707 145.3
B 7 221 45535 308.55 730 707 145.3
B 0 198 31630 212.84 730 707 145.3
C 14 254 104751 614.69 716 720 169.2
C 12 2 60827 355.16 716 720 169.2
C 14 67 14543 81.68 716 720 169.2
D 2 249 290050 1637.28 707 687 176.7
D 14 34 91644 514.65 707 687 176.7
D 11 224 81489 457.2 707 687 176.7

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