ASTROSAT CZTI

Data Quality Report

Orbit 09035

Creation date: 2024-06-27T15:40:20.574259
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/AS1G07_029T02_9000001256_09035cztM0_level2.evt modeM0/AS1G07_029T02_9000001256_09035cztM0_level2_quad_clean.evt
Size (bytes)619,925,76099,872,640
Size591.2 MB 95.2 MB
Events in quadrant A7,103,276627,505
Events in quadrant B3,736,234649,750
Events in quadrant C3,220,656635,205
Events in quadrant D4,228,530611,970

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261702
B0157451
C0146991
D0175301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71794456.198635%
B7179961.337234%
C7179280.390026%
D71791762.451595%

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 7584 7179 307 307 4.05% 4.28%
B 7584 7180 13 13 0.17% 0.18%
C 7584 7180 0 0 0.00% 0.00%
D 7584 7179 85 85 1.12% 1.18%

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 8 5 3501551 20416.62 842 824 171.5
A 5 16 153176 888.53 842 824 171.5
A 1 162 88276 510.03 842 824 171.5
B 4 48 243208 1470.85 853 833 164.8
B 6 51 80082 480.92 853 833 164.8
B 0 197 22939 134.15 853 833 164.8
C 13 61 6226 28.1 825 830 192.0
C 14 234 2833 10.43 825 830 192.0
C 3 202 2052 6.36 825 830 192.0
D 6 225 754474 3581.23 825 805 210.4
D 2 14 84392 397.18 825 805 210.4
D 1 52 63375 297.32 825 805 210.4

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