ASTROSAT CZTI

Data Quality Report

Orbit 32023

Creation date: 2024-06-27T20:35:21.957825
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/AS1A10_109T01_9000004678_32023cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32023cztM0_level2_quad_clean.evt
Size (bytes)644,754,240112,579,200
Size614.9 MB 107.4 MB
Events in quadrant A3,590,656765,418
Events in quadrant B6,315,005735,694
Events in quadrant C4,243,257717,913
Events in quadrant D4,898,484697,325

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149211
B0239121
C0169072
D0192711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70872002.822069%
B70876048.522647%
C70863735.263901%
D70872984.204882%

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 7202 7087 0 0 0.00% 0.00%
B 7202 7087 207 207 2.87% 2.92%
C 7201 7086 58 58 0.81% 0.82%
D 7202 7087 126 126 1.75% 1.78%

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 13439 66.37 927 907 188.8
A 13 6 12835 63.17 927 907 188.8
A 3 137 9472 45.36 927 907 188.8
B 6 159 1794307 10493.86 889 867 170.9
B 12 18 881255 5151.37 889 867 170.9
B 0 229 38710 221.43 889 867 170.9
C 0 10 291051 1400.86 873 880 207.1
C 3 233 167101 802.46 873 880 207.1
C 14 238 139603 669.71 873 880 207.1
D 8 195 968947 4550.42 892 869 212.7
D 13 249 377006 1768.02 892 869 212.7
D 2 250 110269 514.23 892 869 212.7

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