ASTROSAT CZTI

Data Quality Report

Orbit 17022

Creation date: 2024-06-27T17:30:54.846757
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/AS1A05_206T01_9000002528_17022cztM0_level2.evt modeM0/AS1A05_206T01_9000002528_17022cztM0_level2_quad_clean.evt
Size (bytes)515,142,720118,431,360
Size491.3 MB 112.9 MB
Events in quadrant A4,542,994767,010
Events in quadrant B3,477,437814,484
Events in quadrant C3,327,164797,110
Events in quadrant D3,821,690764,296

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176002
B0143523
C0135502
D0153492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63615067.954724%
B6360801.257862%
C6360711.116352%
D63601452.279874%

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 7712 6363 422 422 5.47% 6.63%
B 7711 6362 11 11 0.14% 0.17%
C 7711 6362 0 0 0.00% 0.00%
D 7711 6362 51 51 0.66% 0.80%

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 15 174 1507226 9587.86 786 770 157.1
A 4 2 13883 83.46 786 770 157.1
A 0 226 7014 39.74 786 770 157.1
B 7 220 161369 1081.18 816 796 148.5
B 4 216 35265 232.09 816 796 148.5
B 0 219 21807 141.47 816 796 148.5
C 14 238 125855 672.87 808 815 185.8
C 3 233 45730 241.7 808 815 185.8
C 13 61 5697 26.27 808 815 185.8
D 5 222 347487 1803.9 802 780 192.2
D 1 52 265036 1374.91 802 780 192.2
D 15 0 80251 413.48 802 780 192.2

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