ASTROSAT CZTI

Data Quality Report

Orbit 41389

Creation date: 2024-06-27T22:28:29.694048
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/AS1T05_105T01_9000005662_41389cztM0_level2.fits modeM0/AS1T05_105T01_9000005662_41389cztM0_level2_quad_clean.evt
Size (bytes)526,357,440139,608,000
Size502.0 MB 133.1 MB
Events in quadrant A4,458,918957,758
Events in quadrant B3,828,343997,958
Events in quadrant C4,612,637899,588
Events in quadrant D5,938,531794,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0452
B05512
C0441
D0463

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018911
B018914
C018110
D019016

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198221643
B0185831602
C0207411864
D0255392171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8299260.313291%
B8318190.228420%
C82933043.665742%
D82636567.939005%

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 13510 8736 7 7 0.05% 0.08%
B 13510 8738 3 3 0.02% 0.03%
C 13508 8745 281 281 2.08% 3.21%
D 13510 8717 506 506 3.75% 5.80%

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 10 83 762408 4016.14 933 916 189.6
A 13 248 42474 219.18 933 916 189.6
A 13 6 19543 98.24 933 916 189.6
B 0 190 57107 316.53 932 909 177.5
B 0 229 53345 295.34 932 909 177.5
B 5 255 52335 289.65 932 909 177.5
C 0 10 816782 3974.95 883 891 205.3
C 15 214 344567 1674.36 883 891 205.3
C 12 251 7959 34.43 883 891 205.3
D 2 249 1203651 5698.42 859 835 211.1
D 1 52 385306 1821.46 859 835 211.1
D 1 47 313107 1479.41 859 835 211.1

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