ASTROSAT CZTI

Data Quality Report

Orbit 44763

Creation date: 2024-06-27T23:06:13.910064
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/AS1A13_004T12_9000006020_44763cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44763cztM0_level2_quad_clean.evt
Size (bytes)651,029,76097,977,600
Size620.9 MB 93.4 MB
Events in quadrant A12,278,084384,895
Events in quadrant B3,529,802759,261
Events in quadrant C3,104,959738,286
Events in quadrant D4,695,732643,238

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0408662
B0147832
C0135942
D0182932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318354056.030389%
B63171622.564508%
C6317570.902327%
D63173826.047174%

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 7498 6318 3013 3013 40.18% 47.69%
B 7497 6318 75 75 1.00% 1.19%
C 7497 6318 21 21 0.28% 0.33%
D 7497 6318 289 289 3.85% 4.57%

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 8330874 71074.83 563 552 117.2
A 10 83 1667131 14219.36 563 552 117.2
A 13 248 89483 758.76 563 552 117.2
B 0 219 218423 1553.71 728 706 140.1
B 0 189 138052 980.15 728 706 140.1
B 5 255 106867 757.6 728 706 140.1
C 14 254 122753 719.03 729 734 169.7
C 1 3 65303 380.49 729 734 169.7
C 0 207 40618 235.03 729 734 169.7
D 1 52 585247 3298.03 709 689 177.2
D 5 235 359678 2025.38 709 689 177.2
D 5 222 252895 1422.92 709 689 177.2

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