ASTROSAT CZTI

Data Quality Report

Orbit 09816

Creation date: 2024-06-27T15:50:58.781731
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_218T01_9000001394_09816cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09816cztM0_level2_quad_clean.evt
Size (bytes)488,963,52084,487,680
Size466.3 MB 80.6 MB
Events in quadrant A3,337,942523,224
Events in quadrant B3,378,900531,248
Events in quadrant C3,188,095517,283
Events in quadrant D4,423,993495,073

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146413
B0146192
C0144272
D0178332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7062991.401869%
B7062991.401869%
C7062460.651374%
D70621852.619654%

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 7762 7063 6 6 0.08% 0.08%
B 7762 7063 3 3 0.04% 0.04%
C 7762 7063 0 0 0.00% 0.00%
D 7762 7063 89 89 1.15% 1.26%

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 13 248 34232 193.01 848 830 173.1
A 8 15 26214 146.68 848 830 173.1
A 8 5 9535 50.3 848 830 173.1
B 10 252 23766 140.62 846 824 163.2
B 4 173 23250 137.45 846 824 163.2
B 12 111 18871 110.61 846 824 163.2
C 0 207 9283 44.41 814 817 190.6
C 13 61 5997 27.17 814 817 190.6
C 10 22 3453 13.83 814 817 190.6
D 1 52 799890 3741.28 810 792 213.6
D 2 152 232736 1085.93 810 792 213.6
D 5 113 201873 941.44 810 792 213.6

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