ASTROSAT CZTI

Data Quality Report

Orbit 22248

Creation date: 2024-06-27T18:38:30.906765
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/AS1A07_018T02_9000003292_22248cztM0_level2.evt modeM0/AS1A07_018T02_9000003292_22248cztM0_level2_quad_clean.evt
Size (bytes)485,009,28078,480,000
Size462.5 MB 74.8 MB
Events in quadrant A3,350,954496,044
Events in quadrant B3,423,290505,021
Events in quadrant C3,534,235478,105
Events in quadrant D3,956,614461,771

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135732
B0139022
C0142682
D0156122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6234731.170998%
B62341181.892846%
C62341362.181585%
D6234841.347449%

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 7569 6235 0 0 0.00% 0.00%
B 7569 6235 5 5 0.07% 0.08%
C 7569 6235 22 22 0.29% 0.35%
D 7569 6235 41 41 0.54% 0.66%

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 8917 46.75 870 855 172.4
A 0 226 7555 38.86 870 855 172.4
A 3 137 7014 35.72 870 855 172.4
B 3 64 34367 207.29 865 846 161.7
B 12 111 18855 111.37 865 846 161.7
B 11 111 17205 101.16 865 846 161.7
C 10 22 193827 1020.81 820 829 189.1
C 14 238 133282 700.57 820 829 189.1
C 0 10 9703 46.94 820 829 189.1
D 1 52 744885 3736.36 830 808 199.1
D 13 172 38589 189.72 830 808 199.1
D 13 104 31972 156.49 830 808 199.1

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