ASTROSAT CZTI

Data Quality Report

Orbit 10705

Creation date: 2024-06-27T16:02:44.742875
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/AS1A03_053T01_9000001542_10705cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10705cztM0_level2_quad_clean.evt
Size (bytes)533,318,40092,882,880
Size508.6 MB 88.6 MB
Events in quadrant A3,391,166598,414
Events in quadrant B4,628,959591,618
Events in quadrant C3,077,897594,326
Events in quadrant D4,591,709553,983

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143514
B0181263
C0138211
D0178653

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6801881.293927%
B68014176.131451%
C6802530.779183%
D68012293.367152%

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 7637 6802 1 1 0.01% 0.01%
B 7637 6803 202 202 2.65% 2.97%
C 7637 6803 1 1 0.01% 0.01%
D 7637 6802 167 167 2.19% 2.46%

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 1 162 68073 403.48 817 798 166.7
A 14 254 37771 221.74 817 798 166.7
A 4 2 32527 190.29 817 798 166.7
B 4 239 1097830 7132.48 801 782 153.8
B 4 81 96406 621.7 801 782 153.8
B 0 85 93350 601.83 801 782 153.8
C 14 234 8558 42.11 787 791 184.4
C 13 61 5809 27.21 787 791 184.4
C 14 67 2501 9.27 787 791 184.4
D 10 199 493931 2608.78 781 759 189.0
D 8 195 389673 2057.27 781 759 189.0
D 2 16 303493 1601.4 781 759 189.0

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