ASTROSAT CZTI

Data Quality Report

Orbit 11010

Creation date: 2024-06-27T16:06:51.732701
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/AS1G08_027T06_9000001594_11010cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_11010cztM0_level2_quad_clean.evt
Size (bytes)490,720,32075,144,960
Size468.0 MB 71.7 MB
Events in quadrant A4,133,205465,032
Events in quadrant B3,888,413472,529
Events in quadrant C2,738,780469,661
Events in quadrant D3,690,204445,233

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01627312
B01561211
C01250015
D01508721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60523135.171844%
B60523155.204891%
C6049220.363696%
D6049671.107621%

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 6381 6057 206 206 3.23% 3.40%
B 6381 6057 164 164 2.57% 2.71%
C 6381 6057 5 5 0.08% 0.08%
D 6381 6057 29 29 0.45% 0.48%

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 8 5 990388 6807.4 701 687 145.4
A 14 238 377184 2589.64 701 687 145.4
A 8 15 42597 288.27 701 687 145.4
B 4 239 907124 6703.13 703 688 135.2
B 0 219 83199 610.17 703 688 135.2
B 15 204 65821 481.66 703 688 135.2
C 0 207 62454 385.86 684 689 160.1
C 13 61 5160 27.93 684 689 160.1
C 8 222 3434 17.15 684 689 160.1
D 11 129 425875 2564.19 680 659 165.8
D 1 52 205876 1237.52 680 659 165.8
D 8 195 202628 1217.94 680 659 165.8

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