ASTROSAT CZTI

Data Quality Report

Orbit 25969

Creation date: 2024-06-27T19:23:22.918759
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_068T01_9000003760_25969cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_25969cztM0_level2_quad_clean.evt
Size (bytes)484,058,88093,358,080
Size461.6 MB 89.0 MB
Events in quadrant A3,713,247622,995
Events in quadrant B3,067,425622,202
Events in quadrant C3,376,659581,918
Events in quadrant D4,099,852585,638

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144080
B0127970
C0137910
D0159500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59291262.125148%
B5929761.281835%
C59301392.344013%
D59301813.052277%

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 7164 5930 0 0 0.00% 0.00%
B 7164 5930 0 0 0.00% 0.00%
C 7165 5931 11 11 0.15% 0.19%
D 7165 5931 165 165 2.30% 2.78%

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 15 169 711024 4544.03 779 766 156.3
A 13 254 9010 52.74 779 766 156.3
A 0 226 6942 39.51 779 766 156.3
B 0 190 84811 585.16 759 741 143.7
B 12 111 17185 114.45 759 741 143.7
B 11 111 15274 101.15 759 741 143.7
C 3 233 426834 2531.61 720 724 168.3
C 14 238 118329 698.72 720 724 168.3
C 7 238 25854 149.3 720 724 168.3
D 1 52 1274765 7225.48 741 723 176.3
D 2 234 22516 123.59 741 723 176.3
D 2 120 10531 55.62 741 723 176.3

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