ASTROSAT CZTI

Data Quality Report

Orbit 11154

Creation date: 2024-06-27T16:09:11.896212
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/AS1A04_145T03_9000001624_11154cztM0_level2.evt modeM0/AS1A04_145T03_9000001624_11154cztM0_level2_quad_clean.evt
Size (bytes)660,096,000102,657,600
Size629.5 MB 97.9 MB
Events in quadrant A5,612,705654,981
Events in quadrant B5,158,886655,098
Events in quadrant C3,527,188657,816
Events in quadrant D5,179,829613,849

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01584
B01586
C01584
D01584

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022440741
B021116865
C016226447
D021213737

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75565407.146638%
B75355437.206370%
C75762232.943506%
D75695317.015458%

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 7927 7659 154 154 1.94% 2.01%
B 7927 7643 188 188 2.37% 2.46%
C 7927 7673 0 0 0.00% 0.00%
D 7927 7658 245 245 3.09% 3.20%

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 5 1475448 7825.79 913 892 188.4
A 14 238 250491 1324.68 913 892 188.4
A 0 23 192418 1016.47 913 892 188.4
B 4 239 1332686 7612.36 900 877 175.0
B 15 204 125506 712.35 900 877 175.0
B 4 80 55961 314.85 900 877 175.0
C 8 128 8861 37.73 897 899 211.0
C 14 67 8102 34.13 897 899 211.0
C 13 61 6726 27.61 897 899 211.0
D 13 152 592282 2767.99 878 853 213.7
D 1 52 406516 1898.57 878 853 213.7
D 10 253 404506 1889.17 878 853 213.7

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