ASTROSAT CZTI

Data Quality Report

Orbit 47126

Creation date: 2024-06-27T23:32:00.992098
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/AS1C09_003T01_9000006298_47126cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47126cztM0_level2_quad_clean.evt
Size (bytes)203,811,84046,736,640
Size194.4 MB 44.6 MB
Events in quadrant A2,546,562307,205
Events in quadrant B2,308,907299,946
Events in quadrant C1,200,280314,215
Events in quadrant D1,254,784281,497

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01010
B077
C088
D088

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181558849
B0144965596
C0103134194
D0115705380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09935
B09938
C010544
D09941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2885120.415945%
B29802678.959732%
C305200.000000%
D298560.201005%

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 6804 3060 2 2 0.03% 0.07%
B 6855 3154 244 244 3.56% 7.74%
C 6945 3230 0 0 0.00% 0.00%
D 6898 3181 5 5 0.07% 0.16%

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 1365605 21686.01 298 292 63.0
A 0 247 9895 152.53 298 292 63.0
A 9 191 9536 146.83 298 292 63.0
B 5 32 821105 14131.42 290 282 58.1
B 8 234 106364 1826.32 290 282 58.1
B 4 21 92524 1588.05 290 282 58.1
C 14 254 9655 129.24 303 305 72.3
C 15 208 2996 37.2 303 305 72.3
C 13 61 2087 24.63 303 305 72.3
D 2 249 22148 292.59 296 286 74.7
D 5 171 18869 248.7 296 286 74.7
D 14 34 18866 248.66 296 286 74.7

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