ASTROSAT CZTI

Data Quality Report

Orbit 20710

Creation date: 2024-06-27T18:18:38.523930
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/AS1A05_165T07_9000003062_20710cztM0_level2.evt modeM0/AS1A05_165T07_9000003062_20710cztM0_level2_quad_clean.evt
Size (bytes)483,367,68095,785,920
Size461.0 MB 91.3 MB
Events in quadrant A3,273,773631,776
Events in quadrant B3,673,113625,846
Events in quadrant C3,326,145600,172
Events in quadrant D3,928,055593,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138072
B0150072
C0139792
D0159382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6454681.053610%
B64541191.843818%
C64541001.549427%
D6454901.394484%

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 7594 6454 0 0 0.00% 0.00%
B 7594 6454 28 28 0.37% 0.43%
C 7594 6454 0 0 0.00% 0.00%
D 7594 6454 35 35 0.46% 0.54%

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 0 226 7243 37.73 850 834 169.9
A 3 137 6401 32.77 850 834 169.9
A 12 194 6125 31.15 850 834 169.9
B 7 220 223631 1414.96 834 814 157.5
B 0 197 117086 738.37 834 814 157.5
B 0 230 27584 170.0 834 814 157.5
C 14 238 127952 686.01 807 815 185.3
C 7 247 23621 123.06 807 815 185.3
C 3 233 19656 101.66 807 815 185.3
D 1 52 421776 2138.56 823 800 196.8
D 5 222 325027 1647.08 823 800 196.8
D 2 234 24261 119.18 823 800 196.8

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