ASTROSAT CZTI

Data Quality Report

Orbit 07710

Creation date: 2024-06-27T15:22:57.286372
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/AS1A02_155T01_9000001062_07710cztM0_level2.evt modeM0/AS1A02_155T01_9000001062_07710cztM0_level2_quad_clean.evt
Size (bytes)1,732,818,240317,652,480
Size1.6 GB 302.9 MB
Events in quadrant A11,450,3041,999,067
Events in quadrant B11,815,6692,036,810
Events in quadrant C14,615,0881,965,997
Events in quadrant D12,917,3761,908,605

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05060
B05060
C05060
D05060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0516254
B0521714
C0594554
D0563184

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A248663121.254725%
B248664331.741334%
C248665192.087187%
D248664231.701118%

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 26181 24870 0 0 0.00% 0.00%
B 26181 24868 42 42 0.16% 0.17%
C 26181 24869 205 205 0.78% 0.82%
D 26181 24870 184 184 0.70% 0.74%

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 23 198469 330.2 2903 2835 592.5
A 3 1 46780 74.17 2903 2835 592.5
A 0 226 40226 63.11 2903 2835 592.5
B 4 239 282641 501.52 2929 2861 557.9
B 0 219 72182 124.26 2929 2861 557.9
B 12 111 58910 100.47 2929 2861 557.9
C 9 68 3168539 4849.83 2822 2834 652.7
C 8 229 364233 553.66 2822 2834 652.7
C 10 22 36387 51.4 2822 2834 652.7
D 2 152 1488434 2168.55 2809 2719 685.1
D 12 221 328034 474.83 2809 2719 685.1
D 13 104 200995 289.4 2809 2719 685.1

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