ASTROSAT CZTI

Data Quality Report

Orbit 06617

Creation date: 2024-06-27T15:09:37.191150
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/AS1G06_164T01_9000000896_06617cztM0_level2.evt modeM0/AS1G06_164T01_9000000896_06617cztM0_level2_quad_clean.evt
Size (bytes)439,295,04064,019,520
Size418.9 MB 61.1 MB
Events in quadrant A2,299,492418,188
Events in quadrant B2,571,467417,970
Events in quadrant C2,214,285419,912
Events in quadrant D5,875,768328,246

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124422072
B0132202134
C0124342071
D0259294994

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012422
B012622
C012222
D012218

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5082440.865801%
B5059881.739474%
C5096130.255102%
D4915108322.034588%

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 6319 5271 0 0 0.00% 0.00%
B 6316 5267 12 12 0.19% 0.23%
C 6369 5310 0 0 0.00% 0.00%
D 6295 5131 819 819 13.01% 15.96%

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 40825 332.82 586 572 120.9
A 15 234 5872 43.82 586 572 120.9
A 0 226 5531 41.0 586 572 120.9
B 4 80 144730 1281.03 584 571 112.5
B 0 219 85282 752.76 584 571 112.5
B 0 214 24481 212.47 584 571 112.5
C 1 16 5335 36.09 566 565 132.2
C 13 61 4429 29.24 566 565 132.2
C 3 202 1448 6.68 566 565 132.2
D 8 195 1623099 13130.83 501 485 123.6
D 14 34 1083719 8765.95 501 485 123.6
D 2 33 912969 7384.18 501 485 123.6

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