ASTROSAT CZTI

Data Quality Report

Orbit 16060

Creation date: 2024-06-27T17:17:23.929485
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/AS1G08_012T01_9000002370_16060cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16060cztM0_level2_quad_clean.evt
Size (bytes)778,608,000147,528,000
Size742.5 MB 140.7 MB
Events in quadrant A6,081,000913,449
Events in quadrant B5,690,043932,680
Events in quadrant C5,618,621907,149
Events in quadrant D5,388,385896,000

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255192
B0247202
C0245812
D0244962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118311211.022737%
B118311541.301665%
C118311791.512974%
D11831440.371904%

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 12522 11832 0 0 0.00% 0.00%
B 12522 11832 1 1 0.01% 0.01%
C 12522 11833 0 0 0.00% 0.00%
D 12522 11834 5 5 0.04% 0.04%

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 3 80 583572 2022.99 1422 1390 287.8
A 9 143 18227 58.51 1422 1390 287.8
A 0 226 12451 38.44 1422 1390 287.8
B 0 230 59999 213.56 1422 1385 274.5
B 12 111 33686 117.69 1422 1385 274.5
B 11 111 28828 99.99 1422 1385 274.5
C 14 238 211138 648.1 1375 1383 323.6
C 3 233 38535 114.79 1375 1383 323.6
C 13 61 9805 26.02 1375 1383 323.6
D 1 52 53066 152.42 1392 1353 339.3
D 2 234 41688 118.89 1392 1353 339.3
D 2 152 36252 102.87 1392 1353 339.3

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