ASTROSAT CZTI

Data Quality Report

Orbit 47158

Creation date: 2024-06-27T23:32:21.733150
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/AS1C09_003T01_9000006298_47158cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47158cztM0_level2_quad_clean.evt
Size (bytes)425,689,920100,584,000
Size406.0 MB 95.9 MB
Events in quadrant A6,128,195669,136
Events in quadrant B3,069,385688,595
Events in quadrant C2,733,284652,667
Events in quadrant D3,342,571600,263

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227271
B0135201
C0128971
D0146361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62311933.097416%
B62321211.941592%
C6232250.401155%
D62321302.086008%

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 7196 6232 23 23 0.32% 0.37%
B 7197 6233 50 50 0.69% 0.80%
C 7197 6233 14 14 0.19% 0.22%
D 7197 6233 101 101 1.40% 1.62%

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 3400168 24279.42 678 666 140.0
A 0 243 33954 237.74 678 666 140.0
A 9 191 32379 226.5 678 666 140.0
B 4 171 158973 1212.17 676 654 130.6
B 5 32 64122 485.94 676 654 130.6
B 4 21 58029 439.29 676 654 130.6
C 14 254 118978 765.88 658 660 154.5
C 15 208 26786 169.12 658 660 154.5
C 3 233 15061 93.22 658 660 154.5
D 1 47 506876 3068.67 660 639 165.0
D 7 96 104497 629.56 660 639 165.0
D 5 32 43115 257.48 660 639 165.0

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