ASTROSAT CZTI

Data Quality Report

Orbit 05473

Creation date: 2024-06-27T14:55:37.654197
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/AS1T01_138T01_9000000698_05473cztM0_level2.evt modeM0/AS1T01_138T01_9000000698_05473cztM0_level2_quad_clean.evt
Size (bytes)522,743,04069,851,520
Size498.5 MB 66.6 MB
Events in quadrant A2,909,576431,962
Events in quadrant B3,829,025427,755
Events in quadrant C2,893,632434,340
Events in quadrant D5,759,848369,190

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132493
B0157892
C0131262
D0215682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6461190.294072%
B64611081.671568%
C646190.139297%
D646190714.038075%

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 7526 6462 2 2 0.03% 0.03%
B 7526 6462 39 39 0.52% 0.60%
C 7526 6462 0 0 0.00% 0.00%
D 7526 6462 818 818 10.87% 12.66%

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 0 50 18933 120.19 740 724 151.5
A 15 174 13936 87.2 740 724 151.5
A 13 6 10947 67.48 740 724 151.5
B 7 221 464456 3217.16 747 730 144.1
B 15 204 273899 1895.14 747 730 144.1
B 11 51 54860 375.53 747 730 144.1
C 9 247 89103 536.49 715 719 164.7
C 12 4 9899 55.72 715 719 164.7
C 13 61 5765 30.63 715 719 164.7
D 2 33 2810348 17107.21 661 640 164.2
D 8 195 103088 623.77 661 640 164.2
D 5 81 87999 531.89 661 640 164.2

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