ASTROSAT CZTI

Data Quality Report

Orbit 14562

Creation date: 2024-06-27T16:56:53.738986
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/AS1A04_089T01_9000002146_14562cztM0_level2.evt modeM0/AS1A04_089T01_9000002146_14562cztM0_level2_quad_clean.evt
Size (bytes)491,137,920107,498,880
Size468.4 MB 102.5 MB
Events in quadrant A3,406,382704,391
Events in quadrant B3,723,253717,679
Events in quadrant C3,697,789696,408
Events in quadrant D3,603,411681,937

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142573
B0152222
C0148832
D0149582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6531871.332108%
B65311402.143623%
C6531580.888072%
D65311602.449855%

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 9162 6534 0 0 0.00% 0.00%
B 9162 6534 11 11 0.12% 0.17%
C 9162 6534 0 0 0.00% 0.00%
D 9162 6534 73 73 0.80% 1.12%

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 64686 373.71 851 834 170.9
A 12 189 47749 274.58 851 834 170.9
A 0 23 16704 92.88 851 834 170.9
B 0 189 138898 856.37 856 836 161.2
B 4 173 49813 303.79 856 836 161.2
B 0 214 49284 300.51 856 836 161.2
C 3 233 410016 2103.39 841 847 194.5
C 14 220 7535 34.38 841 847 194.5
C 13 61 6036 26.67 841 847 194.5
D 10 199 163071 803.2 837 817 202.0
D 12 110 105286 517.15 837 817 202.0
D 13 122 78390 384.01 837 817 202.0

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