ASTROSAT CZTI

Data Quality Report

Orbit 04430

Creation date: 2024-06-27T14:41:52.900857
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_04430cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04430cztM0_level2_quad_clean.evt
Size (bytes)343,889,28044,426,880
Size328.0 MB 42.4 MB
Events in quadrant A2,090,188293,687
Events in quadrant B1,568,401302,171
Events in quadrant C1,262,211308,850
Events in quadrant D5,296,602233,542

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081430
B065470
C058080
D0176780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28851505.199307%
B2885491.698440%
C288520.069324%
D2885161055.805893%

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 2885 2885 94 94 3.26% 3.26%
B 2885 2885 35 35 1.21% 1.21%
C 2885 2885 2 2 0.07% 0.07%
D 2885 2885 1677 1677 58.13% 58.13%

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 830291 12392.9 322 316 67.0
A 0 118 9975 144.22 322 316 67.0
A 8 15 8213 117.92 322 316 67.0
B 14 167 166896 2644.15 325 319 63.0
B 8 3 82137 1298.73 325 319 63.0
B 15 204 24021 376.23 325 319 63.0
C 9 247 12142 158.61 319 320 74.5
C 12 4 4113 50.89 319 320 74.5
C 13 61 2675 31.6 319 320 74.5
D 13 114 3684190 54963.68 277 270 67.0
D 13 53 347042 5173.8 277 270 67.0
D 7 6 70822 1052.63 277 270 67.0

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