ASTROSAT CZTI

Data Quality Report

Orbit 08363

Creation date: 2024-06-27T15:31:39.023878
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/AS1A03_036T01_9000001164_08363cztM0_level2.evt modeM0/AS1A03_036T01_9000001164_08363cztM0_level2_quad_clean.evt
Size (bytes)441,227,52069,073,920
Size420.8 MB 65.9 MB
Events in quadrant A2,977,841417,013
Events in quadrant B3,072,892429,668
Events in quadrant C2,858,554411,685
Events in quadrant D4,022,142390,420

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130232
B0132261
C0128711
D0162811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6343500.788271%
B6343370.583320%
C6343210.331074%
D63431923.026959%

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 7508 6343 1 1 0.01% 0.02%
B 7508 6344 0 0 0.00% 0.00%
C 7508 6344 0 0 0.00% 0.00%
D 7508 6344 182 182 2.42% 2.87%

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 14 111 33833 215.0 754 738 153.9
A 15 239 31572 200.32 754 738 153.9
A 15 236 7176 41.82 754 738 153.9
B 0 214 40493 274.97 764 746 144.6
B 4 173 28746 193.7 764 746 144.6
B 12 111 15265 100.44 764 746 144.6
C 13 61 5692 29.3 732 736 169.2
C 3 202 1884 6.78 732 736 169.2
C 8 208 1818 6.39 732 736 169.2
D 12 233 988221 5375.9 718 701 183.7
D 2 152 198700 1077.88 718 701 183.7
D 5 81 27245 144.5 718 701 183.7

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