ASTROSAT CZTI

Data Quality Report

Orbit 03387

Creation date: 2024-06-27T14:28:20.794472
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_112T01_9000000452_03387cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03387cztM0_level2_quad_clean.evt
Size (bytes)391,279,68080,890,560
Size373.2 MB 77.1 MB
Events in quadrant A2,890,991511,497
Events in quadrant B2,899,197520,289
Events in quadrant C2,791,206515,463
Events in quadrant D2,863,260486,299

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125522
B0124001
C0121991
D0127531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5951370.621744%
B5951390.655352%
C5951130.218451%
D5951590.991430%

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 7231 5952 3 3 0.04% 0.05%
B 7231 5952 2 2 0.03% 0.03%
C 7231 5952 0 0 0.00% 0.00%
D 7231 5952 45 45 0.62% 0.76%

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 0 118 57176 390.53 707 692 144.6
A 0 31 52277 356.66 707 692 144.6
A 8 15 22316 149.51 707 692 144.6
B 15 204 47162 334.36 726 710 138.9
B 0 229 29683 208.55 726 710 138.9
B 12 111 10459 70.17 726 710 138.9
C 1 192 14325 82.82 703 704 164.5
C 9 144 7459 41.07 703 704 164.5
C 14 67 6962 38.05 703 704 164.5
D 13 223 197441 1181.7 688 667 166.5
D 5 233 15368 88.28 688 667 166.5
D 2 107 14159 81.02 688 667 166.5

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