ASTROSAT CZTI

Data Quality Report

Orbit 44329

Creation date: 2024-06-27T23:02:14.966558
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_004T09_9000005992_44329cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44329cztM0_level2_quad_clean.evt
Size (bytes)441,184,320102,755,520
Size420.7 MB 98.0 MB
Events in quadrant A4,316,429712,635
Events in quadrant B3,643,839701,100
Events in quadrant C2,793,233686,757
Events in quadrant D5,119,803599,326

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179461
B0146181
C0122951
D0191321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58911482.512307%
B58923245.498982%
C5892560.950441%
D58925589.470468%

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 7106 5891 7 7 0.10% 0.12%
B 7107 5892 193 193 2.72% 3.28%
C 7107 5892 5 5 0.07% 0.08%
D 7107 5892 436 436 6.13% 7.40%

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 1445959 9979.9 707 695 144.8
A 7 3 59404 405.4 707 695 144.8
A 10 248 36151 244.83 707 695 144.8
B 5 172 584577 4395.63 683 663 132.8
B 5 255 176567 1324.18 683 663 132.8
B 0 199 58091 432.31 683 663 132.8
C 14 254 111732 701.69 681 686 158.3
C 1 3 11028 65.35 681 686 158.3
C 3 233 9250 54.11 681 686 158.3
D 13 249 1421565 8480.46 667 647 167.6
D 2 153 509197 3035.18 667 647 167.6
D 5 171 168711 1003.06 667 647 167.6

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