ASTROSAT CZTI

Data Quality Report

Orbit 04043

Creation date: 2024-06-27T14:36:42.067384
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/AS1G05_246T03_9000000516_04043cztM0_level2.evt modeM0/AS1G05_246T03_9000000516_04043cztM0_level2_quad_clean.evt
Size (bytes)607,063,68073,992,960
Size578.9 MB 70.6 MB
Events in quadrant A5,918,454404,097
Events in quadrant B4,055,292430,680
Events in quadrant C3,643,965437,061
Events in quadrant D4,231,626419,243

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230003
B0174742
C0166932
D0184602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79007749.797468%
B79004635.860759%
C79003003.797468%
D79013314.189343%

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 8100 7901 305 305 3.77% 3.86%
B 8100 7901 43 43 0.53% 0.54%
C 8100 7902 3 3 0.04% 0.04%
D 8101 7902 28 28 0.35% 0.35%

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 15 869184 4689.22 891 867 185.2
A 0 199 760943 4104.68 891 867 185.2
A 0 50 699520 3772.98 891 867 185.2
B 10 16 306427 1691.92 927 901 180.6
B 15 204 50001 271.9 927 901 180.6
B 14 167 49375 268.44 927 901 180.6
C 9 144 78117 366.69 903 905 210.6
C 12 4 20397 92.57 903 905 210.6
C 13 61 7566 31.63 903 905 210.6
D 10 246 513902 2350.97 894 863 218.2
D 13 239 93406 424.07 894 863 218.2
D 13 137 88351 400.91 894 863 218.2

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