ASTROSAT CZTI

Data Quality Report

Orbit 30073

Creation date: 2024-06-27T20:10:35.103845
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_071T06_9000004324_30073cztM0_level2.evt modeM0/AS1A10_071T06_9000004324_30073cztM0_level2_quad_clean.evt
Size (bytes)842,791,680126,584,640
Size803.7 MB 120.7 MB
Events in quadrant A4,500,044850,473
Events in quadrant B7,115,938843,324
Events in quadrant C4,549,886812,808
Events in quadrant D8,710,527662,221

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01960
B01960
C01960
D01960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198553
B0289742
C0198142
D0323572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A95731421.483339%
B95732402.507051%
C95741881.963652%
D9574185919.417172%

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 10268 9576 1 1 0.01% 0.01%
B 10268 9576 1 1 0.01% 0.01%
C 10269 9577 0 0 0.00% 0.00%
D 10269 9577 1558 1558 15.17% 16.27%

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 8 192 24319 99.45 1155 1129 233.2
A 3 1 21343 86.69 1155 1129 233.2
A 13 254 16376 65.39 1155 1129 233.2
B 6 159 2629281 11941.71 1131 1100 220.1
B 0 229 29563 129.33 1131 1100 220.1
B 12 111 28095 122.66 1131 1100 220.1
C 14 238 177347 674.34 1104 1111 261.3
C 3 233 25901 94.86 1104 1111 261.3
C 2 114 22958 83.59 1104 1111 261.3
D 13 104 4643041 19616.23 993 973 236.6
D 8 195 163746 687.84 993 973 236.6
D 2 250 58445 242.86 993 973 236.6

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