ASTROSAT CZTI

Data Quality Report

Orbit 03450

Creation date: 2024-06-27T14:29:11.967394
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/AS1G05_167T01_9000000456_03450cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03450cztM0_level2_quad_clean.evt
Size (bytes)505,428,480104,664,960
Size482.0 MB 99.8 MB
Events in quadrant A3,541,846660,478
Events in quadrant B3,961,607663,764
Events in quadrant C3,661,002664,006
Events in quadrant D3,612,015638,776

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161042
B0168831
C0164891
D0167281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77991131.448904%
B77991061.359149%
C7799660.846262%
D77991011.295038%

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 7829 7801 2 2 0.03% 0.03%
B 7829 7801 2 2 0.03% 0.03%
C 7829 7801 23 23 0.29% 0.29%
D 7829 7801 57 57 0.73% 0.73%

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 0 50 29146 148.55 909 890 190.2
A 12 194 9374 44.6 909 890 190.2
A 0 226 9268 44.04 909 890 190.2
B 15 204 299086 1642.93 924 901 181.5
B 4 81 36181 194.38 924 901 181.5
B 0 229 19474 102.33 924 901 181.5
C 14 234 123365 589.09 885 891 207.9
C 14 223 50474 238.49 885 891 207.9
C 1 192 13230 59.35 885 891 207.9
D 13 223 252451 1172.07 876 851 214.7
D 7 223 13352 58.24 876 851 214.7
D 9 85 12893 56.1 876 851 214.7

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