ASTROSAT CZTI

Data Quality Report

Orbit 04389

Creation date: 2024-06-27T14:41:21.429058
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/AS1G05_230T02_9000000548_04389cztM0_level2.evt modeM0/AS1G05_230T02_9000000548_04389cztM0_level2_quad_clean.evt
Size (bytes)461,422,08074,836,800
Size440.0 MB 71.4 MB
Events in quadrant A3,224,573450,433
Events in quadrant B3,303,993445,537
Events in quadrant C3,190,111442,647
Events in quadrant D3,771,975432,289

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147742
B0148041
C0147731
D0165251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71091291.814601%
B71091251.758335%
C7109590.829934%
D71091401.969335%

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 7110 24 24 0.32% 0.34%
B 7569 7110 4 4 0.05% 0.06%
C 7569 7110 5 5 0.07% 0.07%
D 7569 7110 46 46 0.61% 0.65%

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 13 248 73282 437.46 807 786 165.7
A 13 251 19997 115.92 807 786 165.7
A 8 15 14854 84.89 807 786 165.7
B 15 54 44157 280.64 808 788 154.5
B 15 204 42737 271.45 808 788 154.5
B 5 200 35951 227.54 808 788 154.5
C 9 247 57809 314.01 783 785 181.6
C 14 48 42743 231.04 783 785 181.6
C 9 16 25181 134.34 783 785 181.6
D 2 63 250874 1347.64 780 758 185.6
D 9 35 109932 588.24 780 758 185.6
D 2 136 86995 464.65 780 758 185.6

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