ASTROSAT CZTI

Data Quality Report

Orbit 25098

Creation date: 2024-06-27T19:13:47.796131
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/AS1T03_206T01_9000003672_25098cztM0_level2.evt modeM0/AS1T03_206T01_9000003672_25098cztM0_level2_quad_clean.evt
Size (bytes)454,642,56085,919,040
Size433.6 MB 81.9 MB
Events in quadrant A2,939,757564,944
Events in quadrant B3,192,606583,400
Events in quadrant C3,174,535536,942
Events in quadrant D4,065,681508,435

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122790
B0131390
C0129460
D0159340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5845200.342173%
B5844390.667351%
C5844811.386037%
D58441202.053388%

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 7160 5846 0 0 0.00% 0.00%
B 7159 5845 6 6 0.08% 0.10%
C 7159 5845 15 15 0.21% 0.26%
D 7159 5845 93 93 1.30% 1.59%

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 13 254 10170 61.72 760 748 152.7
A 0 226 6780 39.51 760 748 152.7
A 3 137 6505 37.71 760 748 152.7
B 0 229 78729 541.69 767 751 144.0
B 0 190 58696 402.52 767 751 144.0
B 5 172 36187 246.16 767 751 144.0
C 7 247 168075 990.68 726 735 168.9
C 14 238 117594 691.83 726 735 168.9
C 0 207 42672 248.27 726 735 168.9
D 1 3 521476 2682.17 716 704 194.2
D 2 244 291164 1495.98 716 704 194.2
D 8 195 210871 1082.44 716 704 194.2

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