ASTROSAT CZTI

Data Quality Report

Orbit 13363

Creation date: 2024-06-27T16:39:41.532392
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/AS1G08_082T01_9000001986_13363cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13363cztM0_level2_quad_clean.evt
Size (bytes)512,081,280103,656,960
Size488.4 MB 98.9 MB
Events in quadrant A3,639,073657,824
Events in quadrant B3,694,258679,809
Events in quadrant C3,661,839657,416
Events in quadrant D4,003,745622,108

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160293
B0161872
C0158942
D0172162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7498380.506802%
B7498590.786877%
C7498140.186716%
D7498771.026941%

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 8919 7501 1 1 0.01% 0.01%
B 8919 7501 7 7 0.08% 0.09%
C 8919 7501 4 4 0.04% 0.05%
D 8919 7501 67 67 0.75% 0.89%

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 5 98 44120 230.65 918 900 187.4
A 8 15 33499 173.97 918 900 187.4
A 1 162 13734 68.49 918 900 187.4
B 3 64 40918 226.24 916 890 176.9
B 4 142 31433 172.63 916 890 176.9
B 0 230 25683 140.13 916 890 176.9
C 14 220 144202 694.88 886 889 206.2
C 3 233 65966 315.54 886 889 206.2
C 13 61 6303 26.25 886 889 206.2
D 8 195 213319 998.89 877 851 212.7
D 2 136 145569 680.37 877 851 212.7
D 13 249 133088 621.7 877 851 212.7

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