ASTROSAT CZTI

Data Quality Report

Orbit 28961

Creation date: 2024-06-27T19:58:32.676554
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/AS1A10_048T03_9000004154_28961cztM0_level2.evt modeM0/AS1A10_048T03_9000004154_28961cztM0_level2_quad_clean.evt
Size (bytes)526,302,72084,286,080
Size501.9 MB 80.4 MB
Events in quadrant A3,402,372528,926
Events in quadrant B3,558,447539,395
Events in quadrant C3,492,708514,923
Events in quadrant D5,033,356504,118

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144643
B0149792
C0146702
D0197002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6674801.198681%
B66741121.678154%
C66742493.730896%
D66752493.730337%

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 8704 6676 0 0 0.00% 0.00%
B 8704 6676 7 7 0.08% 0.10%
C 8704 6676 0 0 0.00% 0.00%
D 8705 6677 140 140 1.61% 2.10%

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 12 96 30437 169.99 865 848 174.1
A 15 192 20571 113.31 865 848 174.1
A 11 128 13402 72.12 865 848 174.1
B 10 245 154472 928.51 860 839 165.5
B 12 111 19990 115.74 860 839 165.5
B 11 111 18246 105.2 860 839 165.5
C 14 238 176723 911.2 823 827 193.0
C 14 254 62324 318.57 823 827 193.0
C 3 233 26779 134.44 823 827 193.0
D 8 195 988392 4957.43 829 808 199.2
D 1 52 421351 2111.02 829 808 199.2
D 5 233 280246 1402.71 829 808 199.2

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