ASTROSAT CZTI

Data Quality Report

Orbit 44432

Creation date: 2024-06-27T23:03:32.951590
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_072T03_9000006000_44432cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44432cztM0_level2_quad_clean.evt
Size (bytes)407,315,52097,522,560
Size388.4 MB 93.0 MB
Events in quadrant A4,225,831654,386
Events in quadrant B3,123,570668,285
Events in quadrant C3,812,081636,055
Events in quadrant D3,456,973581,971

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178851
B0131071
C0152461
D0142521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59002013.406780%
B59012153.643450%
C59012414.084054%
D59002323.932203%

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 6875 5901 3 3 0.04% 0.05%
B 6876 5902 39 39 0.57% 0.66%
C 6876 5902 105 105 1.53% 1.78%
D 6875 5901 80 80 1.16% 1.36%

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 1518762 10514.84 690 674 144.4
A 7 3 13044 85.68 690 674 144.4
A 13 248 9067 58.13 690 674 144.4
B 5 172 188279 1378.22 682 659 136.1
B 0 229 127180 929.4 682 659 136.1
B 5 255 46064 333.54 682 659 136.1
C 15 208 439970 2777.67 673 677 158.2
C 2 14 341020 2152.0 673 677 158.2
C 3 233 316941 1999.75 673 677 158.2
D 2 249 374035 2168.95 677 656 172.1
D 1 52 97173 560.66 677 656 172.1
D 13 249 93336 538.38 677 656 172.1

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