ASTROSAT CZTI

Data Quality Report

Orbit 09194

Creation date: 2024-06-27T15:42:33.986123
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/AS1C02_042T02_9000001284_09194cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09194cztM0_level2_quad_clean.evt
Size (bytes)535,334,40076,080,960
Size510.5 MB 72.6 MB
Events in quadrant A3,945,208454,307
Events in quadrant B3,540,439461,446
Events in quadrant C3,368,210454,593
Events in quadrant D4,871,830433,993

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159905
B0150432
C0148644
D0193855

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71692593.612777%
B71702463.430962%
C71691802.510810%
D71693655.091366%

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 7675 7170 13 13 0.17% 0.18%
B 7675 7170 8 8 0.10% 0.11%
C 7675 7170 0 0 0.00% 0.00%
D 7675 7170 117 117 1.52% 1.63%

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 5 300718 1665.28 879 860 180.1
A 1 162 126507 697.79 879 860 180.1
A 15 223 27261 146.62 879 860 180.1
B 12 111 18564 103.05 886 864 171.8
B 10 252 18457 102.42 886 864 171.8
B 8 234 17628 97.6 886 864 171.8
C 13 61 6513 27.95 861 864 202.1
C 8 128 5017 20.55 861 864 202.1
C 8 222 4839 19.67 861 864 202.1
D 1 52 1340291 5902.64 845 824 226.9
D 9 64 95523 417.31 845 824 226.9
D 7 71 80121 349.44 845 824 226.9

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