ASTROSAT CZTI

Data Quality Report

Orbit 43219

Creation date: 2024-06-27T22:49:28.354538
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/AS1A06_006T01_9000005860_43219cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43219cztM0_level2_quad_clean.evt
Size (bytes)207,411,84045,982,080
Size197.8 MB 43.9 MB
Events in quadrant A2,074,247295,100
Events in quadrant B1,598,518313,501
Events in quadrant C1,336,708305,988
Events in quadrant D2,445,371274,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079301
B067091
C057151
D091723

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28401766.197183%
B2840983.450704%
C284020.070423%
D28391565.494893%

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 4122 2841 136 136 3.30% 4.79%
B 4122 2841 74 74 1.80% 2.60%
C 4122 2841 0 0 0.00% 0.00%
D 4121 2840 147 147 3.57% 5.18%

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 15 237 398966 6039.5 309 302 66.0
A 10 83 304776 4612.58 309 302 66.0
A 13 248 119838 1810.89 309 302 66.0
B 5 172 272986 4316.94 311 302 63.2
B 5 32 43732 687.55 311 302 63.2
B 0 189 21367 333.49 311 302 63.2
C 15 214 116504 1556.89 311 313 74.6
C 14 254 6088 77.38 311 313 74.6
C 3 233 2184 25.07 311 313 74.6
D 1 52 592591 7731.64 306 297 76.6
D 1 20 537061 7006.77 306 297 76.6
D 1 47 61036 792.87 306 297 76.6

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