ASTROSAT CZTI

Data Quality Report

Orbit 04429

Creation date: 2024-06-27T14:41:51.792986
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/AS1G05_230T04_9000000550_04429cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04429cztM0_level2_quad_clean.evt
Size (bytes)595,722,24077,886,720
Size568.1 MB 74.3 MB
Events in quadrant A3,576,432492,821
Events in quadrant B4,014,647495,333
Events in quadrant C2,837,930508,629
Events in quadrant D7,202,211437,873

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145802
B0158781
C0124661
D0254031

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60621812.985813%
B60623906.433520%
C6062450.742329%
D6062130521.527549%

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 7337 6063 98 98 1.34% 1.62%
B 7337 6063 280 280 3.82% 4.62%
C 7337 6063 2 2 0.03% 0.03%
D 7337 6063 1381 1381 18.82% 22.78%

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 0 13 683535 4669.97 725 712 146.2
A 0 50 40350 271.09 725 712 146.2
A 8 15 30655 204.79 725 712 146.2
B 14 167 700142 5217.35 719 700 134.1
B 10 16 463940 3455.45 719 700 134.1
B 15 54 27195 197.63 719 700 134.1
C 9 247 34689 208.85 714 718 162.7
C 12 4 7554 42.03 714 718 162.7
C 9 16 7224 40.0 714 718 162.7
D 13 114 4126159 26034.37 677 660 158.5
D 13 239 141414 888.24 677 660 158.5
D 13 53 84626 529.88 677 660 158.5

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