ASTROSAT CZTI

Data Quality Report

Orbit 29705

Creation date: 2024-06-27T20:07:01.558775
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_007T01_9000004276_29705cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29705cztM0_level2_quad_clean.evt
Size (bytes)565,116,480103,386,240
Size538.9 MB 98.6 MB
Events in quadrant A3,215,101669,983
Events in quadrant B5,311,429681,302
Events in quadrant C3,736,272672,565
Events in quadrant D4,400,027641,929

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138163
B0204252
C0154512
D0175482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6673300.449573%
B66741412.112676%
C66741051.573269%
D6674691.033863%

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 7608 6674 0 0 0.00% 0.00%
B 7609 6674 0 0 0.00% 0.00%
C 7609 6675 6 6 0.08% 0.09%
D 7609 6675 47 47 0.62% 0.70%

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 12745 70.97 833 816 168.1
A 3 137 8387 45.04 833 816 168.1
A 0 226 7110 37.45 833 816 168.1
B 6 159 1974292 12321.97 833 814 160.2
B 0 229 45115 276.61 833 814 160.2
B 12 111 19968 119.59 833 814 160.2
C 3 233 373660 1948.54 814 821 191.3
C 14 238 131382 682.34 814 821 191.3
C 10 22 35580 181.66 814 821 191.3
D 8 195 815268 4251.32 807 787 191.6
D 7 238 158956 825.59 807 787 191.6
D 7 80 117729 610.4 807 787 191.6

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