ASTROSAT CZTI

Data Quality Report

Orbit 46669

Creation date: 2024-06-27T23:26:16.300712
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_092T18_9000006248_46669cztM0_level2.fits modeM0/AS1A13_092T18_9000006248_46669cztM0_level2_quad_clean.evt
Size (bytes)222,592,32038,531,520
Size212.3 MB 36.7 MB
Events in quadrant A2,345,935259,509
Events in quadrant B1,657,541265,710
Events in quadrant C1,044,137255,138
Events in quadrant D2,990,377201,662

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086620
B066870
C051670
D0106290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2575130.504854%
B2575582.252427%
C257500.000000%
D257546718.135922%

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 2575 2575 3 3 0.12% 0.12%
B 2575 2575 31 31 1.20% 1.20%
C 2575 2575 0 0 0.00% 0.00%
D 2574 2574 421 421 16.36% 16.36%

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 1224920 21146.42 270 264 57.9
A 9 191 50904 874.41 270 264 57.9
A 15 235 11223 189.23 270 264 57.9
B 0 189 223658 4054.97 265 257 55.1
B 4 171 204806 3712.78 265 257 55.1
B 0 198 65964 1192.65 265 257 55.1
C 14 254 10768 167.43 261 262 62.8
C 12 250 5051 76.32 261 262 62.8
C 14 67 4730 71.2 261 262 62.8
D 1 52 978222 15438.16 247 239 63.3
D 8 176 562959 8882.94 247 239 63.3
D 13 70 117282 1847.61 247 239 63.3

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