ASTROSAT CZTI

Data Quality Report

Orbit 05272

Creation date: 2024-06-27T14:53:23.321808
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_240T02_9000000670_05272cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05272cztM0_level2_quad_clean.evt
Size (bytes)587,453,76076,190,400
Size560.2 MB 72.7 MB
Events in quadrant A3,492,154472,848
Events in quadrant B3,285,227478,972
Events in quadrant C3,180,426468,890
Events in quadrant D7,356,327396,268

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015438180
B014747211
C014674178
D027213545

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70431752.484737%
B70261682.391119%
C70461201.703094%
D7004145820.816676%

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 7370 7125 9 9 0.12% 0.13%
B 7370 7125 4 4 0.05% 0.06%
C 7370 7128 2 2 0.03% 0.03%
D 7369 7098 1136 1136 15.42% 16.00%

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 0 254 224476 1339.57 815 795 167.0
A 13 251 100153 595.03 815 795 167.0
A 0 50 28536 166.13 815 795 167.0
B 0 199 30211 184.19 821 799 159.7
B 15 204 20547 123.67 821 799 159.7
B 4 80 17776 106.32 821 799 159.7
C 14 67 30306 156.44 801 803 188.6
C 12 4 26343 135.43 801 803 188.6
C 13 61 6474 30.07 801 803 188.6
D 11 145 3163263 17802.3 719 695 177.6
D 1 31 1142426 6426.88 719 695 177.6
D 2 136 199093 1116.8 719 695 177.6

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