ASTROSAT CZTI

Data Quality Report

Orbit 05339

Creation date: 2024-06-27T14:54:03.459684
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_240T01_9000000674_05339cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05339cztM0_level2_quad_clean.evt
Size (bytes)487,598,40082,460,160
Size465.0 MB 78.6 MB
Events in quadrant A3,163,637519,360
Events in quadrant B3,647,949531,269
Events in quadrant C4,184,627507,026
Events in quadrant D3,329,294485,977

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01379877
B01523562
C01694685
D01443765

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64891001.541070%
B64971742.678159%
C6495851.308699%
D6498861.323484%

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 8952 6522 11 11 0.12% 0.17%
B 8951 6521 55 55 0.61% 0.84%
C 8952 6522 2 2 0.02% 0.03%
D 8952 6523 36 36 0.40% 0.55%

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 50 59819 359.95 801 785 164.0
A 13 251 23820 140.45 801 785 164.0
A 12 194 7893 43.34 801 785 164.0
B 10 16 424221 2740.7 813 794 154.5
B 15 204 22909 143.14 813 794 154.5
B 4 48 16992 104.84 813 794 154.5
C 1 16 1120859 6218.7 777 782 180.1
C 14 67 14527 76.31 777 782 180.1
C 15 1 13277 69.37 777 782 180.1
D 4 95 241302 1261.37 771 747 190.7
D 8 195 60408 312.84 771 747 190.7
D 2 14 40400 207.92 771 747 190.7

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