ASTROSAT CZTI

Data Quality Report

Orbit 46346

Creation date: 2024-06-27T23:22:02.450684
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_070T05_9000006198_46346cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46346cztM0_level2_quad_clean.evt
Size (bytes)554,189,76090,645,120
Size528.5 MB 86.4 MB
Events in quadrant A10,259,632403,785
Events in quadrant B3,441,735679,878
Events in quadrant C2,863,731657,006
Events in quadrant D3,475,641578,487

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0348131
B0143231
C0129951
D0147771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6089267743.964526%
B60891632.676958%
C6089711.166037%
D60893225.288225%

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 6979 6090 1832 1832 26.25% 30.08%
B 6979 6090 50 50 0.72% 0.82%
C 6979 6090 21 21 0.30% 0.34%
D 6979 6090 214 214 3.07% 3.51%

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 5958357 56276.79 503 491 105.9
A 10 83 2315409 21866.24 503 491 105.9
A 7 3 11229 101.42 503 491 105.9
B 3 112 414317 3094.72 681 662 133.7
B 5 172 232127 1731.68 681 662 133.7
B 15 201 41852 308.16 681 662 133.7
C 12 2 91282 563.96 679 682 160.6
C 12 249 49155 301.73 679 682 160.6
C 12 250 28803 175.05 679 682 160.6
D 5 235 686477 4137.03 663 642 165.8
D 1 52 76636 458.4 663 642 165.8
D 13 249 35200 208.46 663 642 165.8

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