ASTROSAT CZTI

Data Quality Report

Orbit 30602

Creation date: 2024-06-27T20:17:31.425743
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_058T03_9000004408_30602cztM0_level2.evt modeM0/AS1A10_058T03_9000004408_30602cztM0_level2_quad_clean.evt
Size (bytes)600,552,000109,307,520
Size572.7 MB 104.2 MB
Events in quadrant A3,733,423745,086
Events in quadrant B4,934,074743,934
Events in quadrant C3,306,106706,301
Events in quadrant D5,798,666685,895

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148691
B0188752
C0136421
D0215331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61462273.693459%
B61452153.498779%
C61462684.360560%
D61462043.319232%

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 7251 6147 65 65 0.90% 1.06%
B 7250 6146 13 13 0.18% 0.21%
C 7251 6147 0 0 0.00% 0.00%
D 7251 6147 63 63 0.87% 1.02%

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 0 13 476333 2868.8 835 821 165.8
A 13 170 18850 108.77 835 821 165.8
A 8 192 11587 64.95 835 821 165.8
B 6 159 1634659 10587.05 814 796 154.3
B 6 36 33698 213.2 814 796 154.3
B 5 172 33432 211.47 814 796 154.3
C 14 238 162484 899.73 781 787 179.7
C 14 254 44836 245.1 781 787 179.7
C 3 233 16709 88.59 781 787 179.7
D 8 195 2442147 13071.63 802 784 186.8
D 13 249 113337 602.63 802 784 186.8
D 5 222 84458 448.01 802 784 186.8

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