ASTROSAT CZTI

Data Quality Report

Orbit 43109

Creation date: 2024-06-27T22:48:09.278664
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/AS1T05_154T01_9000005850_43109cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43109cztM0_level2_quad_clean.evt
Size (bytes)70,931,52020,643,840
Size67.6 MB 19.7 MB
Events in quadrant A815,397133,058
Events in quadrant B527,435140,476
Events in quadrant C626,051136,354
Events in quadrant D562,258126,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031921
B023641
C025741
D025071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1173423.580563%
B117330.255754%
C117310.085251%
D117370.596760%

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 2966 1174 22 22 0.74% 1.87%
B 2966 1174 1 1 0.03% 0.09%
C 2966 1174 0 0 0.00% 0.00%
D 2966 1174 6 6 0.20% 0.51%

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 179247 6250.44 129 127 28.7
A 15 222 125429 4372.44 129 127 28.7
A 15 237 6429 219.91 129 127 28.7
B 12 111 3294 116.64 131 128 27.1
B 0 229 3161 111.74 131 128 27.1
B 3 112 3122 110.3 131 128 27.1
C 0 239 63971 2027.81 127 127 31.5
C 15 214 58147 1842.83 127 127 31.5
C 0 207 1819 53.74 127 127 31.5
D 2 249 67785 2055.51 127 122 32.9
D 1 52 6953 207.52 127 122 32.9
D 2 234 4252 125.46 127 122 32.9

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