ASTROSAT CZTI

Data Quality Report

Orbit 25160

Creation date: 2024-06-27T19:14:26.377759
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/AS1A07_018T02_9000003684_25160cztM0_level2.evt modeM0/AS1A07_018T02_9000003684_25160cztM0_level2_quad_clean.evt
Size (bytes)496,247,040102,150,720
Size473.3 MB 97.4 MB
Events in quadrant A3,277,322660,642
Events in quadrant B3,389,658674,018
Events in quadrant C4,324,450647,894
Events in quadrant D3,577,989639,204

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140850
B0143080
C0176220
D0150330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6769410.605702%
B6769851.255725%
C67691502.215985%
D6769340.502290%

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 7534 6770 0 0 0.00% 0.00%
B 7534 6770 3 3 0.04% 0.04%
C 7534 6769 1 1 0.01% 0.01%
D 7534 6769 10 10 0.13% 0.15%

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 10490 56.5 847 830 171.0
A 3 137 7779 40.64 847 830 171.0
A 0 226 7071 36.5 847 830 171.0
B 0 189 31340 185.44 848 826 164.5
B 12 111 20203 117.76 848 826 164.5
B 11 111 17851 103.47 848 826 164.5
C 7 247 925210 4763.99 823 828 194.0
C 14 238 129635 663.83 823 828 194.0
C 9 54 44239 223.73 823 828 194.0
D 1 52 292968 1442.02 831 807 202.6
D 8 195 117631 576.61 831 807 202.6
D 2 234 28640 137.38 831 807 202.6

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