ASTROSAT CZTI

Data Quality Report

Orbit 12354

Creation date: 2024-06-27T16:26:02.724004
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/AS1A04_210T04_9000001828_12354cztM0_level2.evt modeM0/AS1A04_210T04_9000001828_12354cztM0_level2_quad_clean.evt
Size (bytes)54,184,32013,409,280
Size51.7 MB 12.8 MB
Events in quadrant A481,17887,035
Events in quadrant B391,49888,758
Events in quadrant C340,31588,183
Events in quadrant D376,94884,832

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019481
B015690
C014550
D015510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70250.712251%
B70281.139601%
C70200.000000%
D70210.142450%

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 703 703 0 0 0.00% 0.00%
B 703 703 3 3 0.43% 0.43%
C 703 703 0 0 0.00% 0.00%
D 703 703 1 1 0.14% 0.14%

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 53126 2577.17 91 89 20.6
A 1 162 24704 1196.09 91 89 20.6
A 13 251 16141 780.0 91 89 20.6
B 4 239 14655 743.95 89 87 19.6
B 0 219 10064 509.5 89 87 19.6
B 10 245 5362 269.38 89 87 19.6
C 15 208 2452 107.79 86 86 22.0
C 13 61 576 22.32 86 86 22.0
C 3 202 244 7.2 86 86 22.0
D 1 52 29314 1234.43 88 85 23.7
D 13 172 4479 185.57 88 85 23.7
D 10 253 3433 141.4 88 85 23.7

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