ASTROSAT CZTI

Data Quality Report

Orbit 29298

Creation date: 2024-06-27T20:02:30.769076
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/AS1A10_050T01_9000004212_29298cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29298cztM0_level2_quad_clean.evt
Size (bytes)768,957,12075,093,120
Size733.3 MB 71.6 MB
Events in quadrant A3,273,070495,190
Events in quadrant B3,401,424496,554
Events in quadrant C7,701,688418,449
Events in quadrant D8,500,231437,115

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130051
B0135171
C0272811
D0296043

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6108831.358874%
B6108911.489849%
C6109212034.702897%
D6108145123.755730%

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 7363 6109 0 0 0.00% 0.00%
B 7363 6109 3 3 0.04% 0.05%
C 7364 6110 584 584 7.93% 9.56%
D 7363 6109 1229 1229 16.69% 20.12%

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 13 254 13343 74.6 847 832 167.7
A 0 226 7354 38.89 847 832 167.7
A 3 137 7131 37.56 847 832 167.7
B 10 245 44228 280.1 827 809 155.0
B 5 172 39923 252.33 827 809 155.0
B 0 229 24934 155.63 827 809 155.0
C 3 233 4356590 27552.72 691 697 158.1
C 14 238 314402 1984.31 691 697 158.1
C 14 254 308344 1945.99 691 697 158.1
D 1 52 1966818 11330.4 737 721 173.5
D 8 195 1652445 9518.7 737 721 173.5
D 12 233 1459335 8405.83 737 721 173.5

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