ASTROSAT CZTI

Data Quality Report

Orbit 10248

Creation date: 2024-06-27T15:57:14.784872
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_011T03_9000001476_10248cztM0_level2.evt modeM0/AS1G07_011T03_9000001476_10248cztM0_level2_quad_clean.evt
Size (bytes)363,507,84077,293,440
Size346.7 MB 73.7 MB
Events in quadrant A2,465,980505,734
Events in quadrant B2,712,441511,868
Events in quadrant C2,384,428502,871
Events in quadrant D3,115,754479,653

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102571
B0110521
C0101611
D0123801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4854661.359703%
B4854861.771735%
C4854621.277297%
D48541132.327977%

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 6189 4854 0 0 0.00% 0.00%
B 6189 4854 9 9 0.15% 0.19%
C 6189 4854 0 0 0.00% 0.00%
D 6189 4855 49 49 0.79% 1.01%

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 8 15 21717 166.0 631 619 127.1
A 13 14 9074 66.53 631 619 127.1
A 0 226 5834 41.03 631 619 127.1
B 11 51 106794 889.27 629 614 119.4
B 10 247 71664 595.05 629 614 119.4
B 4 239 35575 292.8 629 614 119.4
C 0 207 10872 73.25 606 609 140.1
C 14 67 5486 34.81 606 609 140.1
C 14 234 5406 34.24 606 609 140.1
D 8 195 485198 3027.15 600 591 160.1
D 2 33 131565 818.14 600 591 160.1
D 1 52 93809 582.3 600 591 160.1

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