ASTROSAT CZTI

Data Quality Report

Orbit 27951

Creation date: 2024-06-27T19:46:19.413337
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_016T01_9000004034_27951cztM0_level2.evt modeM0/AS1A10_016T01_9000004034_27951cztM0_level2_quad_clean.evt
Size (bytes)563,192,64081,809,280
Size537.1 MB 78.0 MB
Events in quadrant A3,250,509531,818
Events in quadrant B3,434,223538,169
Events in quadrant C3,719,527519,178
Events in quadrant D6,255,228478,173

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130600
B0138380
C0149910
D0230840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5862550.938246%
B5863621.057479%
C58631482.524305%
D586367611.529933%

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 7222 5862 0 0 0.00% 0.00%
B 7223 5863 16 16 0.22% 0.27%
C 7223 5864 35 35 0.48% 0.60%
D 7223 5863 650 650 9.00% 11.09%

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 9950 54.33 841 828 167.9
A 0 226 7442 39.39 841 828 167.9
A 3 137 6946 36.44 841 828 167.9
B 0 230 67107 435.77 823 806 152.1
B 15 32 48221 311.64 823 806 152.1
B 10 245 32705 209.66 823 806 152.1
C 3 233 410834 2224.83 804 813 184.3
C 14 238 134755 726.79 804 813 184.3
C 2 16 38257 203.18 804 813 184.3
D 7 80 1250491 6790.76 787 770 184.0
D 1 52 1033552 5611.95 787 770 184.0
D 8 195 715258 3882.4 787 770 184.0

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