ASTROSAT CZTI

Data Quality Report

Orbit 29154

Creation date: 2024-06-27T20:00:53.310431
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/AS1A10_099T01_9000004184_29154cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29154cztM0_level2_quad_clean.evt
Size (bytes)513,521,28099,377,280
Size489.7 MB 94.8 MB
Events in quadrant A3,231,907664,795
Events in quadrant B3,386,038681,475
Events in quadrant C3,285,033634,431
Events in quadrant D5,230,277597,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134101
B0138951
C0134881
D0197365

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6179991.602201%
B61801262.038835%
C61801352.184466%
D61793545.729082%

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 7434 6180 0 0 0.00% 0.00%
B 7435 6181 4 4 0.05% 0.06%
C 7435 6181 0 0 0.00% 0.00%
D 7434 6180 256 256 3.44% 4.14%

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 13 254 11810 66.28 835 822 165.8
A 3 137 8050 43.6 835 822 165.8
A 13 6 7427 39.84 835 822 165.8
B 0 183 44865 280.07 833 814 157.3
B 0 189 41201 256.77 833 814 157.3
B 10 245 25183 154.93 833 814 157.3
C 14 238 133269 715.15 795 805 185.2
C 3 233 31918 167.97 795 805 185.2
C 2 114 14947 76.35 795 805 185.2
D 1 52 1714418 9253.47 781 765 185.2
D 8 195 436458 2352.68 781 765 185.2
D 10 33 50956 271.02 781 765 185.2

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