ASTROSAT CZTI

Data Quality Report

Orbit 17360

Creation date: 2024-06-27T17:35:29.206532
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_165T12_9000002562_17360cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17360cztM0_level2_quad_clean.evt
Size (bytes)617,273,280116,432,640
Size588.7 MB 111.0 MB
Events in quadrant A3,851,858756,873
Events in quadrant B3,950,530765,557
Events in quadrant C3,950,027724,899
Events in quadrant D6,372,573695,484

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172612
B0173892
C0173022
D0248362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8395350.416915%
B8396851.012387%
C8396991.179133%
D83964405.240591%

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 8915 8397 0 0 0.00% 0.00%
B 8916 8398 1 1 0.01% 0.01%
C 8916 8398 0 0 0.00% 0.00%
D 8916 8398 350 350 3.93% 4.17%

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 0 226 8627 37.59 1001 977 203.5
A 3 137 7649 32.79 1001 977 203.5
A 12 194 7284 30.99 1001 977 203.5
B 12 111 23735 117.96 1005 978 192.9
B 11 111 20186 99.57 1005 978 192.9
B 14 111 17564 85.98 1005 978 192.9
C 14 238 146659 639.86 963 970 227.7
C 3 233 24689 104.17 963 970 227.7
C 8 128 12901 52.4 963 970 227.7
D 5 222 1249659 5349.64 954 925 233.4
D 13 232 964305 4127.17 954 925 233.4
D 1 52 230310 982.7 954 925 233.4

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