ASTROSAT CZTI

Data Quality Report

Orbit 14430

Creation date: 2024-06-27T16:55:04.096086
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/AS1G08_025T01_9000002130_14430cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14430cztM0_level2_quad_clean.evt
Size (bytes)543,254,400106,378,560
Size518.1 MB 101.5 MB
Events in quadrant A3,328,556716,254
Events in quadrant B4,014,810715,682
Events in quadrant C3,453,693702,882
Events in quadrant D5,238,393657,224

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139673
B0160252
C0140742
D0197662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6153490.796359%
B61531582.567853%
C6153340.552576%
D61535969.686332%

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 7509 6154 17 17 0.23% 0.28%
B 7509 6154 72 72 0.96% 1.17%
C 7509 6154 2 2 0.03% 0.03%
D 7509 6154 436 436 5.81% 7.08%

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 268481 1670.11 792 777 160.3
A 12 189 9007 51.34 792 777 160.3
A 0 226 6993 38.78 792 777 160.3
B 0 85 317835 2176.87 792 776 145.6
B 15 222 269864 1847.51 792 776 145.6
B 10 245 70598 479.39 792 776 145.6
C 3 233 440698 2495.72 772 777 176.3
C 13 61 5638 27.58 772 777 176.3
C 14 234 3245 14.0 772 777 176.3
D 13 122 1171352 6171.07 730 713 189.7
D 2 120 608558 3204.28 730 713 189.7
D 10 199 289565 1522.7 730 713 189.7

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