ASTROSAT CZTI

Data Quality Report

Orbit 33440

Creation date: 2024-06-27T20:46:54.900873
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/AS1A11_047T10_9000004778_33440cztM0_level2.evt modeM0/AS1A11_047T10_9000004778_33440cztM0_level2_quad_clean.evt
Size (bytes)98,107,20015,151,680
Size93.6 MB 14.4 MB
Events in quadrant A497,22197,472
Events in quadrant B715,68198,399
Events in quadrant C584,94697,272
Events in quadrant D1,101,09686,808

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036881546
B048092025
C039681630
D0111647252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03824
B03820
C03822
D04125

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207
B02010
C0206
D0218

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106810.093633%
B1055535.023697%
C1069141.309635%
D95123524.710831%

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 3833 1149 0 0 0.00% 0.00%
B 3830 1131 45 45 1.17% 3.98%
C 3837 1162 13 13 0.34% 1.12%
D 3825 962 239 239 6.25% 24.84%

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 6 3136 109.46 127 124 27.5
A 10 83 1967 66.98 127 124 27.5
A 13 254 1805 61.09 127 124 27.5
B 5 255 180887 6948.06 122 119 26.0
B 5 172 31051 1188.91 122 119 26.0
B 0 245 7425 280.82 122 119 26.0
C 15 214 50272 1708.85 120 121 29.3
C 0 10 49382 1678.53 120 121 29.3
C 14 254 8483 284.93 120 121 29.3
D 1 52 527350 21274.76 92 89 24.8
D 8 195 115355 4650.93 92 89 24.8
D 12 6 28576 1149.44 92 89 24.8

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