ASTROSAT CZTI

Data Quality Report

Orbit 11085

Creation date: 2024-06-27T16:08:05.400909
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_071T02_9000001620_11085cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11085cztM0_level2_quad_clean.evt
Size (bytes)587,249,28081,993,600
Size560.0 MB 78.2 MB
Events in quadrant A3,362,318525,406
Events in quadrant B3,885,180537,165
Events in quadrant C2,943,924524,815
Events in quadrant D7,167,550456,241

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139843
B0156062
C0128312
D0256162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290300.476948%
B62901893.004769%
C629070.111288%
D629090114.324324%

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 7515 6291 0 0 0.00% 0.00%
B 7515 6291 90 90 1.20% 1.43%
C 7515 6291 0 0 0.00% 0.00%
D 7515 6291 838 838 11.15% 13.32%

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 367622 2367.71 768 752 154.9
A 15 239 17148 105.82 768 752 154.9
A 11 29 10058 60.06 768 752 154.9
B 4 239 625520 4286.33 773 756 145.8
B 10 16 126431 862.22 773 756 145.8
B 0 214 44436 299.68 773 756 145.8
C 9 204 24123 134.79 747 754 173.4
C 13 61 5520 27.49 747 754 173.4
C 5 207 2657 10.98 747 754 173.4
D 1 52 2582233 15704.1 682 662 164.4
D 10 253 1352698 8224.65 682 662 164.4
D 2 33 345092 2095.22 682 662 164.4

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