ASTROSAT CZTI

Data Quality Report

Orbit 06386

Creation date: 2024-06-27T15:06:36.648860
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/AS1G06_164T01_9000000844_06386cztM0_level2.evt modeM0/AS1G06_164T01_9000000844_06386cztM0_level2_quad_clean.evt
Size (bytes)473,584,32090,910,080
Size451.6 MB 86.7 MB
Events in quadrant A4,169,102570,899
Events in quadrant B3,385,246577,625
Events in quadrant C3,017,196569,828
Events in quadrant D3,305,118557,123

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166832
B0147471
C0140301
D0147821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68502623.824818%
B68501351.970803%
C6850741.080292%
D68501221.781022%

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 7375 6850 93 93 1.26% 1.36%
B 7375 6851 26 26 0.35% 0.38%
C 7375 6851 6 6 0.08% 0.09%
D 7375 6851 34 34 0.46% 0.50%

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 15 1102571 6983.18 776 760 157.8
A 15 174 49707 310.22 776 760 157.8
A 13 251 10457 61.46 776 760 157.8
B 0 219 96087 640.55 783 764 148.8
B 4 81 68122 452.63 783 764 148.8
B 0 214 43304 285.86 783 764 148.8
C 9 54 35651 200.48 754 755 174.1
C 4 254 33599 188.69 754 755 174.1
C 13 61 6084 30.61 754 755 174.1
D 5 97 157186 840.27 760 735 186.2
D 2 152 155070 828.91 760 735 186.2
D 11 241 39396 207.64 760 735 186.2

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