ASTROSAT CZTI

Data Quality Report

Orbit 03272

Creation date: 2024-06-27T14:26:57.512315
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_002T02_9000000444_03272cztM0_level2.evt modeM0/AS1G05_002T02_9000000444_03272cztM0_level2_quad_clean.evt
Size (bytes)468,391,68064,739,520
Size446.7 MB 61.7 MB
Events in quadrant A3,141,008374,878
Events in quadrant B4,055,247380,144
Events in quadrant C3,302,217383,285
Events in quadrant D3,244,179367,146

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138943
B0162502
C0141552
D0143112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65201001.533742%
B6520861.319018%
C6520540.828221%
D6520731.119632%

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 7770 6521 48 48 0.62% 0.74%
B 7770 6521 7 7 0.09% 0.11%
C 7770 6521 25 25 0.32% 0.38%
D 7770 6521 49 49 0.63% 0.75%

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 209130 1368.48 753 737 152.3
A 0 118 25461 162.36 753 737 152.3
A 0 226 9780 59.38 753 737 152.3
B 15 204 947885 6442.0 774 755 147.0
B 2 249 58667 393.89 774 755 147.0
B 5 200 48381 323.93 774 755 147.0
C 2 53 111280 648.06 744 746 170.6
C 14 223 92304 536.8 744 746 170.6
C 1 16 64710 375.02 744 746 170.6
D 13 223 178771 1020.89 732 711 174.4
D 13 239 144297 823.24 732 711 174.4
D 2 209 54953 310.99 732 711 174.4

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