ASTROSAT CZTI

Data Quality Report

Orbit 14403

Creation date: 2024-06-27T16:54:39.747688
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/AS1A04_023T02_9000002124_14403cztM0_level2.evt modeM0/AS1A04_023T02_9000002124_14403cztM0_level2_quad_clean.evt
Size (bytes)470,698,56061,701,120
Size448.9 MB 58.8 MB
Events in quadrant A3,269,245362,915
Events in quadrant B3,488,948365,519
Events in quadrant C3,771,928357,651
Events in quadrant D3,302,672347,587

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132532
B0139651
C0154081
D0137811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6224470.755141%
B62241051.687018%
C6224270.433805%
D6224390.626607%

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 7515 6226 0 0 0.00% 0.00%
B 7515 6225 24 24 0.32% 0.39%
C 7515 6226 0 0 0.00% 0.00%
D 7515 6226 29 29 0.39% 0.47%

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 12 189 102983 621.26 812 797 164.5
A 8 15 25803 152.03 812 797 164.5
A 0 226 7464 40.53 812 797 164.5
B 0 189 82610 531.33 811 793 154.0
B 8 3 63271 405.74 811 793 154.0
B 0 229 60009 384.55 811 793 154.0
C 3 233 715984 3952.36 783 788 181.0
C 13 61 5573 26.44 783 788 181.0
C 14 234 2809 11.17 783 788 181.0
D 2 120 212434 1141.8 777 759 185.4
D 15 0 58120 309.41 777 759 185.4
D 10 199 26195 137.21 777 759 185.4

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