ASTROSAT CZTI

Data Quality Report

Orbit 13049

Creation date: 2024-06-27T16:35:27.710999
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_216T01_9000001916_13049cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13049cztM0_level2_quad_clean.evt
Size (bytes)386,568,00057,954,240
Size368.7 MB 55.3 MB
Events in quadrant A2,661,419357,041
Events in quadrant B3,883,639337,677
Events in quadrant C2,297,029360,222
Events in quadrant D2,521,347345,620

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110701
B0148301
C0103731
D0109421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5049991.960784%
B504969713.804714%
C5049631.247772%
D5049691.366607%

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 5455 5051 1 1 0.02% 0.02%
B 5455 5051 319 319 5.85% 6.32%
C 5455 5051 0 0 0.00% 0.00%
D 5455 5051 2 2 0.04% 0.04%

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 174345 1395.9 595 582 124.5
A 12 189 84405 673.38 595 582 124.5
A 1 162 50443 400.55 595 582 124.5
B 4 239 1257111 11780.85 550 534 106.7
B 3 64 312641 2926.11 550 534 106.7
B 0 85 51063 473.73 550 534 106.7
C 8 128 7743 52.29 584 588 136.8
C 13 61 4440 28.15 584 588 136.8
C 8 112 4427 28.05 584 588 136.8
D 8 195 151415 1065.41 582 566 141.6
D 1 52 70392 493.16 582 566 141.6
D 10 157 65659 459.74 582 566 141.6

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