ASTROSAT CZTI

Data Quality Report

Orbit 24011

Creation date: 2024-06-27T19:01:06.622674
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_165T01_9000003558_24011cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24011cztM0_level2_quad_clean.evt
Size (bytes)487,238,400134,542,080
Size464.7 MB 128.3 MB
Events in quadrant A3,437,896922,721
Events in quadrant B3,249,221945,136
Events in quadrant C3,271,790903,540
Events in quadrant D4,370,630865,217

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142091
B0135481
C0136911
D0170041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290470.747218%
B6291330.524559%
C6291811.287554%
D62913134.975362%

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 7435 6291 9 9 0.12% 0.14%
B 7436 6292 0 0 0.00% 0.00%
C 7436 6292 0 0 0.00% 0.00%
D 7436 6292 200 200 2.69% 3.18%

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 6 16 286535 1762.46 818 805 162.1
A 13 254 10031 56.91 818 805 162.1
A 0 226 7078 38.69 818 805 162.1
B 0 190 36667 238.06 810 792 150.7
B 0 197 21173 135.24 810 792 150.7
B 12 111 17276 109.38 810 792 150.7
C 14 238 127825 701.77 789 795 181.0
C 7 247 61277 334.13 789 795 181.0
C 13 61 5385 25.36 789 795 181.0
D 12 218 657243 3444.69 790 766 190.6
D 8 195 384821 2015.23 790 766 190.6
D 7 223 153110 799.39 790 766 190.6

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