ASTROSAT CZTI

Data Quality Report

Orbit 10392

Creation date: 2024-06-27T15:58:49.100484
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/AS1G07_028T01_9000001500_10392cztM0_level2.evt modeM0/AS1G07_028T01_9000001500_10392cztM0_level2_quad_clean.evt
Size (bytes)472,426,56062,979,840
Size450.5 MB 60.1 MB
Events in quadrant A3,259,921372,973
Events in quadrant B3,705,782384,648
Events in quadrant C3,196,620365,411
Events in quadrant D3,718,664345,097

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132183
B0148732
C0132532
D0150322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6282390.620821%
B62821071.703279%
C6282330.525310%
D6282410.652658%

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 7628 6283 0 0 0.00% 0.00%
B 7628 6283 35 35 0.46% 0.56%
C 7628 6283 18 18 0.24% 0.29%
D 7628 6283 22 22 0.29% 0.35%

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 15 39523 232.13 831 816 166.7
A 0 226 7551 40.39 831 816 166.7
A 12 194 6578 34.56 831 816 166.7
B 4 239 228737 1451.84 836 820 157.0
B 0 214 87645 553.08 836 820 157.0
B 11 51 64739 407.17 836 820 157.0
C 14 234 93868 505.05 795 799 184.3
C 13 61 6055 28.52 795 799 184.3
C 0 207 3223 13.15 795 799 184.3
D 1 20 312353 1678.78 783 763 185.6
D 8 195 264616 1421.59 783 763 185.6
D 13 105 86065 459.59 783 763 185.6

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