ASTROSAT CZTI

Data Quality Report

Orbit 47431

Creation date: 2024-07-06T01:14:13.370624
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/AS1A13_053T01_9000006326_47431cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47431cztM0_level2_quad_clean.evt
Size (bytes)521,939,520108,089,280
Size497.8 MB 103.1 MB
Events in quadrant A7,076,227720,812
Events in quadrant B3,779,631756,138
Events in quadrant C3,858,580709,561
Events in quadrant D4,113,979643,682

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253752
B0154172
C0156783
D0167742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63464647.311692%
B63472764.348511%
C63462864.506776%
D63463705.830444%

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 7581 6347 133 133 1.75% 2.10%
B 7582 6348 178 178 2.35% 2.80%
C 7581 6347 213 213 2.81% 3.36%
D 7581 6347 283 283 3.73% 4.46%

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 3792232 24925.64 731 714 152.1
A 9 191 459695 3017.37 731 714 152.1
A 3 137 8223 49.36 731 714 152.1
B 5 32 695519 4950.33 733 711 140.4
B 0 198 73229 516.67 733 711 140.4
B 0 190 39609 277.14 733 711 140.4
C 12 2 797771 4813.56 713 718 165.6
C 0 207 261372 1574.14 713 718 165.6
C 1 3 11019 62.21 713 718 165.6
D 6 112 675512 3792.78 709 687 177.9
D 2 249 186071 1041.93 709 687 177.9
D 11 224 152193 851.52 709 687 177.9

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