ASTROSAT CZTI

Data Quality Report

Orbit 47310

Creation date: 2024-06-27T23:24:44.146956
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_093T12_9000006314_47310cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47310cztM0_level2_quad_clean.evt
Size (bytes)1,089,420,480200,321,280
Size1.0 GB 191.0 MB
Events in quadrant A14,828,4161,317,380
Events in quadrant B7,360,6311,371,939
Events in quadrant C8,273,1891,288,994
Events in quadrant D8,846,3471,175,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0530123
B0312173
C0336513
D0360033

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131798666.571060%
B131795314.029137%
C131808756.638847%
D131809927.526555%

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 14844 13182 239 239 1.61% 1.81%
B 14844 13182 158 158 1.06% 1.20%
C 14845 13183 578 578 3.89% 4.38%
D 14845 13183 646 646 4.35% 4.90%

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 7285435 24740.32 1430 1399 294.4
A 9 191 1485047 5039.23 1430 1399 294.4
A 15 235 289183 977.46 1430 1399 294.4
B 0 200 640436 2280.05 1435 1391 280.3
B 0 190 290401 1031.16 1435 1391 280.3
B 7 221 206362 731.32 1435 1391 280.3
C 12 2 2103990 6391.57 1404 1404 329.0
C 3 233 438238 1327.92 1404 1404 329.0
C 14 254 226662 684.75 1404 1404 329.0
D 12 2 1621565 4644.57 1406 1368 348.8
D 8 176 1134829 3249.26 1406 1368 348.8
D 2 249 164695 468.2 1406 1368 348.8

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