ASTROSAT CZTI

Data Quality Report

Orbit 24930

Creation date: 2024-06-27T19:11:35.440113
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/AS1T03_205T01_9000003652_24930cztM0_level2.evt modeM0/AS1T03_205T01_9000003652_24930cztM0_level2_quad_clean.evt
Size (bytes)603,123,840129,617,280
Size575.2 MB 123.6 MB
Events in quadrant A3,244,120897,255
Events in quadrant B3,331,499907,474
Events in quadrant C4,109,095868,339
Events in quadrant D7,105,740764,115

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143861
B0145471
C0166901
D0256671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70012123.028139%
B70022533.613253%
C70023675.241360%
D7002153121.865181%

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 7046 7002 0 0 0.00% 0.00%
B 7047 7003 0 0 0.00% 0.00%
C 7047 7003 35 35 0.50% 0.50%
D 7047 7003 1328 1328 18.84% 18.96%

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 13 254 11325 62.23 839 819 168.8
A 3 137 7926 42.1 839 819 168.8
A 0 226 7232 37.98 839 819 168.8
B 4 80 36209 223.11 831 810 158.7
B 12 111 19224 116.06 831 810 158.7
B 11 111 17540 105.44 831 810 158.7
C 7 247 673997 3595.27 805 809 187.2
C 14 238 127771 678.06 805 809 187.2
C 10 218 123355 654.47 805 809 187.2
D 7 238 2783753 15448.08 745 722 180.2
D 1 52 1284719 7127.22 745 722 180.2
D 8 195 150237 829.93 745 722 180.2

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