ASTROSAT CZTI

Data Quality Report

Orbit 45212

Creation date: 2024-06-27T23:10:38.742689
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_049T06_9000006054_45212cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45212cztM0_level2_quad_clean.evt
Size (bytes)430,223,040106,125,120
Size410.3 MB 101.2 MB
Events in quadrant A4,899,996706,469
Events in quadrant B3,495,277732,752
Events in quadrant C3,192,893718,552
Events in quadrant D3,864,871631,150

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191921
B0144001
C0134781
D0156831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6081891.463575%
B60821782.926669%
C6082460.756330%
D60822063.387044%

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 7301 6082 25 25 0.34% 0.41%
B 7302 6083 111 111 1.52% 1.82%
C 7302 6083 40 40 0.55% 0.66%
D 7302 6082 162 162 2.22% 2.66%

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 2132568 15015.85 692 676 142.0
A 13 248 46016 319.35 692 676 142.0
A 0 243 23458 160.46 692 676 142.0
B 3 112 323921 2391.7 698 674 135.2
B 5 172 148719 1095.38 698 674 135.2
B 4 171 89463 656.95 698 674 135.2
C 12 2 334276 2032.01 703 708 164.2
C 1 241 61037 367.51 703 708 164.2
C 3 233 28684 170.42 703 708 164.2
D 13 249 417882 2431.44 687 667 171.6
D 5 171 170914 992.16 687 667 171.6
D 4 221 138330 802.27 687 667 171.6

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