ASTROSAT CZTI

Data Quality Report

Orbit 05133

Creation date: 2024-06-27T14:51:45.236894
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_230T05_9000000648_05133cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05133cztM0_level2_quad_clean.evt
Size (bytes)435,591,36084,525,120
Size415.4 MB 80.6 MB
Events in quadrant A3,045,818520,490
Events in quadrant B3,442,034531,295
Events in quadrant C3,091,175528,295
Events in quadrant D3,148,061503,256

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139513
B0149034
C0139614
D0144322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6838550.804329%
B6837821.199356%
C6837420.614305%
D6838660.965195%

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 8603 6840 2 2 0.02% 0.03%
B 8603 6840 4 4 0.05% 0.06%
C 8603 6840 4 4 0.05% 0.06%
D 8603 6840 15 15 0.17% 0.22%

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 0 50 38163 233.3 779 761 160.3
A 0 226 8109 45.83 779 761 160.3
A 12 194 7638 42.9 779 761 160.3
B 15 204 216846 1406.87 794 775 153.6
B 4 80 44687 285.92 794 775 153.6
B 10 16 26436 167.08 794 775 153.6
C 1 16 27371 148.5 767 772 179.1
C 12 4 19648 105.38 767 772 179.1
C 9 16 19535 104.75 767 772 179.1
D 2 33 149924 796.19 760 736 187.4
D 8 195 50329 264.67 760 736 187.4
D 2 14 33089 172.66 760 736 187.4

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