ASTROSAT CZTI

Data Quality Report

Orbit 10766

Creation date: 2024-06-27T16:03:43.584746
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/AS1G07_057T03_9000001552_10766cztM0_level2.evt modeM0/AS1G07_057T03_9000001552_10766cztM0_level2_quad_clean.evt
Size (bytes)597,553,920125,585,280
Size569.9 MB 119.8 MB
Events in quadrant A3,232,222858,467
Events in quadrant B6,032,583822,492
Events in quadrant C3,006,328862,832
Events in quadrant D5,377,800798,125

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139072
B0223341
C0134181
D0203761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6611701.058841%
B661178311.843897%
C6611420.635305%
D66114066.141280%

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 7751 6611 8 8 0.10% 0.12%
B 7751 6611 434 434 5.60% 6.56%
C 7751 6612 1 1 0.01% 0.02%
D 7751 6612 342 342 4.41% 5.17%

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 13 251 45473 281.25 794 778 158.9
A 15 223 36180 222.77 794 778 158.9
A 15 174 32810 201.56 794 778 158.9
B 0 85 1473607 10377.82 760 743 141.9
B 4 239 1451974 10225.39 760 743 141.9
B 0 214 31970 220.03 760 743 141.9
C 13 61 5667 27.99 769 772 174.9
C 14 234 4725 22.6 769 772 174.9
C 8 222 2414 9.39 769 772 174.9
D 10 157 1134731 6240.3 756 735 181.7
D 10 199 478424 2628.69 756 735 181.7
D 1 52 467627 2569.27 756 735 181.7

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