ASTROSAT CZTI

Data Quality Report

Orbit 04410

Creation date: 2024-06-27T14:41:35.626398
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_04410cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04410cztM0_level2_quad_clean.evt
Size (bytes)417,873,60091,949,760
Size398.5 MB 87.7 MB
Events in quadrant A2,988,970586,051
Events in quadrant B3,037,215583,408
Events in quadrant C3,181,758581,736
Events in quadrant D2,991,027565,896

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137553
B0137172
C0142342
D0139672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6706330.492097%
B6706280.417537%
C6706310.462273%
D6706310.462273%

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 7766 6707 13 13 0.17% 0.19%
B 7766 6707 2 2 0.03% 0.03%
C 7766 6707 21 21 0.27% 0.31%
D 7766 6707 15 15 0.19% 0.22%

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 13 251 35213 225.94 750 731 152.6
A 0 50 34608 221.97 750 731 152.6
A 8 15 17708 111.24 750 731 152.6
B 14 167 26386 175.86 760 740 145.8
B 12 18 16343 107.0 760 740 145.8
B 10 16 13200 85.44 760 740 145.8
C 9 16 272370 1592.39 735 738 170.6
C 9 247 20866 118.0 735 738 170.6
C 12 4 14679 81.73 735 738 170.6
D 13 239 119543 683.05 726 705 174.0
D 2 136 36105 203.47 726 705 174.0
D 8 112 22553 125.58 726 705 174.0

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