ASTROSAT CZTI

Data Quality Report

Orbit 10289

Creation date: 2024-06-27T15:57:28.817087
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/AS1A03_072T01_9000001484_10289cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10289cztM0_level2_quad_clean.evt
Size (bytes)487,154,88063,866,880
Size464.6 MB 60.9 MB
Events in quadrant A3,239,094381,140
Events in quadrant B3,613,886384,612
Events in quadrant C3,592,042369,480
Events in quadrant D3,874,517352,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134463
B0146992
C0146942
D0155312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394490.766343%
B63941191.861120%
C63941312.048796%
D6394751.172975%

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 7639 6394 0 0 0.00% 0.00%
B 7639 6394 28 28 0.37% 0.44%
C 7639 6394 56 56 0.73% 0.88%
D 7639 6394 38 38 0.50% 0.59%

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 43352 255.89 827 814 166.2
A 0 226 7531 40.41 827 814 166.2
A 12 194 6638 35.03 827 814 166.2
B 4 239 320616 2038.41 829 812 156.9
B 11 51 38442 239.85 829 812 156.9
B 12 111 16506 100.03 829 812 156.9
C 4 254 493889 2689.77 794 799 183.3
C 13 61 5924 27.96 794 799 183.3
C 14 67 3188 13.03 794 799 183.3
D 8 195 252283 1268.92 786 770 198.2
D 1 52 195495 982.42 786 770 198.2
D 5 222 75858 378.83 786 770 198.2

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