ASTROSAT CZTI

Data Quality Report

Orbit 14205

Creation date: 2024-06-27T16:51:52.069884
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/AS1C03_022T01_9000002098_14205cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14205cztM0_level2_quad_clean.evt
Size (bytes)665,179,20084,867,840
Size634.4 MB 80.9 MB
Events in quadrant A3,770,333537,395
Events in quadrant B3,890,174526,851
Events in quadrant C3,591,554511,024
Events in quadrant D8,398,534486,252

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156282
B0162411
C0150651
D0300071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7294400.548396%
B72941111.521799%
C7294320.438717%
D7294159821.908418%

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 7730 7296 2 2 0.03% 0.03%
B 7730 7296 31 31 0.40% 0.42%
C 7730 7296 0 0 0.00% 0.00%
D 7730 7296 1180 1180 15.27% 16.17%

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 8 15 236604 1284.9 889 867 183.5
A 12 189 64784 348.38 889 867 183.5
A 8 4 21648 113.27 889 867 183.5
B 0 85 142488 836.02 878 856 169.4
B 0 182 96131 562.38 878 856 169.4
B 4 97 47332 274.34 878 856 169.4
C 3 233 281464 1426.45 848 853 196.7
C 13 61 6101 26.68 848 853 196.7
C 0 207 4554 18.81 848 853 196.7
D 13 122 2121158 11215.81 772 752 189.1
D 10 157 1294202 6841.66 772 752 189.1
D 5 222 863217 4561.98 772 752 189.1

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