ASTROSAT CZTI

Data Quality Report

Orbit 05879

Creation date: 2024-06-27T15:00:22.224983
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/AS1G06_023T01_9000000762_05879cztM0_level2.evt modeM0/AS1G06_023T01_9000000762_05879cztM0_level2_quad_clean.evt
Size (bytes)497,183,04079,502,400
Size474.2 MB 75.8 MB
Events in quadrant A3,199,534495,519
Events in quadrant B3,228,094497,470
Events in quadrant C3,095,099479,256
Events in quadrant D5,057,752446,230

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146355
B0144324
C0144622
D0200292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70181241.766885%
B70181341.909376%
C7019831.182505%
D70192944.188631%

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 7689 7020 4 4 0.05% 0.06%
B 7689 7020 0 0 0.00% 0.00%
C 7689 7020 2 2 0.03% 0.03%
D 7689 7020 159 159 2.07% 2.26%

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 15 236 120272 736.18 799 781 162.3
A 0 226 7765 43.03 799 781 162.3
A 12 194 7726 42.79 799 781 162.3
B 15 204 33485 212.08 807 786 154.2
B 0 214 23652 148.31 807 786 154.2
B 12 111 14401 88.31 807 786 154.2
C 1 16 38125 209.62 773 774 178.2
C 1 241 34231 187.77 773 774 178.2
C 13 61 6377 31.44 773 774 178.2
D 2 152 1698269 9163.54 760 735 185.2
D 11 241 190483 1024.29 760 735 185.2
D 2 136 159765 858.47 760 735 185.2

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