ASTROSAT CZTI

Data Quality Report

Orbit 30425

Creation date: 2024-06-27T20:15:04.149983
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/AS1C05_019T04_9000004376_30425cztM0_level2.evt modeM0/AS1C05_019T04_9000004376_30425cztM0_level2_quad_clean.evt
Size (bytes)313,162,56073,048,320
Size298.7 MB 69.7 MB
Events in quadrant A1,793,911502,321
Events in quadrant B2,910,548497,231
Events in quadrant C1,986,000484,714
Events in quadrant D2,546,532471,229

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077410
B0110610
C081260
D0100240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A362040.110497%
B3621220.607567%
C3621802.209334%
D3621371.021817%

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 3620 3620 0 0 0.00% 0.00%
B 3621 3621 3 3 0.08% 0.08%
C 3621 3621 0 0 0.00% 0.00%
D 3621 3621 28 28 0.77% 0.77%

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 0 13 37413 404.06 455 446 91.5
A 13 254 6953 71.12 455 446 91.5
A 3 137 4147 40.45 455 446 91.5
B 6 159 1015997 11944.46 449 438 85.0
B 0 229 105820 1239.45 449 438 85.0
B 4 80 11865 134.4 449 438 85.0
C 3 233 92922 893.26 444 447 103.5
C 14 238 92555 889.71 444 447 103.5
C 10 22 35075 334.49 444 447 103.5
D 13 104 460325 4358.52 446 435 105.5
D 12 227 159170 1504.38 446 435 105.5
D 8 195 102952 971.59 446 435 105.5

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