ASTROSAT CZTI

Data Quality Report

Orbit 28963

Creation date: 2024-06-27T19:58:34.507210
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/AS1A10_048T03_9000004154_28963cztM0_level2.evt modeM0/AS1A10_048T03_9000004154_28963cztM0_level2_quad_clean.evt
Size (bytes)560,473,920105,883,200
Size534.5 MB 101.0 MB
Events in quadrant A4,031,143696,839
Events in quadrant B3,979,154732,693
Events in quadrant C3,361,754689,515
Events in quadrant D5,174,011646,786

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160452
B0158112
C0139662
D0196392

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63182674.226021%
B63182654.194365%
C63181312.073441%
D63183195.049066%

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 7598 6319 195 195 2.57% 3.09%
B 7598 6319 161 161 2.12% 2.55%
C 7598 6319 0 0 0.00% 0.00%
D 7598 6319 226 226 2.97% 3.58%

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 12 96 744748 4457.14 837 823 166.9
A 1 113 27678 160.9 837 823 166.9
A 15 192 17613 100.6 837 823 166.9
B 10 245 547517 3444.79 841 822 158.7
B 0 229 113017 706.95 841 822 158.7
B 12 111 18816 113.38 841 822 158.7
C 14 238 145015 757.2 816 823 190.4
C 14 254 16073 80.08 816 823 190.4
C 2 114 14932 74.09 816 823 190.4
D 8 195 1043721 5512.5 795 776 189.2
D 1 52 922061 4869.46 795 776 189.2
D 5 233 177726 935.27 795 776 189.2

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