ASTROSAT CZTI

Data Quality Report

Orbit 07361

Creation date: 2024-06-27T15:18:56.022279
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/AS1G06_157T02_9000001008_07361cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07361cztM0_level2_quad_clean.evt
Size (bytes)30,726,7208,527,680
Size29.3 MB 8.1 MB
Events in quadrant A223,45355,103
Events in quadrant B235,01561,311
Events in quadrant C231,36348,319
Events in quadrant D206,65953,603

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041243188
B040473041
C047973891
D041333204

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04131
B04036
C04036
D03933

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45710.218818%
B49720.402414%
C40300.000000%
D45410.220264%

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 1327 663 0 0 0.00% 0.00%
B 1417 730 0 0 0.00% 0.00%
C 1567 607 0 0 0.00% 0.00%
D 1431 688 0 0 0.00% 0.00%

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 15 234 20180 1563.11 52 51 12.9
A 13 248 737 53.27 52 51 12.9
A 3 1 599 42.55 52 51 12.9
B 0 214 2026 144.37 59 57 13.6
B 0 213 1520 107.27 59 57 13.6
B 0 219 1453 102.36 59 57 13.6
C 9 68 51440 4015.49 46 46 12.8
C 13 61 391 26.96 46 46 12.8
C 3 202 130 6.56 46 46 12.8
D 2 14 6295 438.55 51 49 14.2
D 2 216 5187 360.75 51 49 14.2
D 14 34 826 54.55 51 49 14.2

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