ASTROSAT CZTI

Data Quality Report

Orbit 16473

Creation date: 2024-06-27T17:23:07.629242
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/AS1C04_007T03_9000002436_16473cztM0_level2.evt modeM0/AS1C04_007T03_9000002436_16473cztM0_level2_quad_clean.evt
Size (bytes)557,694,720104,970,240
Size531.9 MB 100.1 MB
Events in quadrant A4,529,711694,635
Events in quadrant B4,424,422696,153
Events in quadrant C3,910,451672,599
Events in quadrant D3,571,139648,463

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177823
B0174702
C0156542
D0152192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67022343.491495%
B67023264.864220%
C67021031.536855%
D6702961.432408%

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 7923 6704 67 67 0.85% 1.00%
B 7923 6703 237 237 2.99% 3.54%
C 7923 6703 0 0 0.00% 0.00%
D 7923 6704 77 77 0.97% 1.15%

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 15 174 1246098 7241.43 847 833 172.0
A 4 2 32542 184.39 847 833 172.0
A 0 226 7367 38.0 847 833 172.0
B 10 16 693384 4328.42 847 829 160.0
B 3 209 134847 837.6 847 829 160.0
B 4 173 86238 533.8 847 829 160.0
C 3 233 524688 2761.21 820 831 189.7
C 14 238 129571 678.58 820 831 189.7
C 7 247 49079 254.31 820 831 189.7
D 1 52 258635 1280.91 818 798 201.3
D 2 33 133671 660.1 818 798 201.3
D 13 248 65991 323.87 818 798 201.3

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