ASTROSAT CZTI

Data Quality Report

Orbit 45223

Creation date: 2024-06-27T23:10:50.640775
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/AS1A13_049T07_9000006056_45223cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45223cztM0_level2_quad_clean.evt
Size (bytes)1,783,457,280343,100,160
Size1.7 GB 327.2 MB
Events in quadrant A18,522,6062,333,953
Events in quadrant B12,716,5332,398,452
Events in quadrant C10,560,8432,379,579
Events in quadrant D22,471,1761,718,644

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0717822
B0531272
C0480632
D0823952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04560
B04560
C04560
D04560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A226148213.630494%
B226149184.059432%
C226141900.840187%
D22615375316.595180%

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 23599 22614 166 166 0.70% 0.73%
B 23599 22614 342 342 1.45% 1.51%
C 23599 22616 94 94 0.40% 0.42%
D 23600 22616 3164 3164 13.41% 13.99%

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 10 83 7993175 15325.81 2511 2453 521.4
A 13 248 521955 996.38 2511 2453 521.4
A 12 227 152831 288.42 2511 2453 521.4
B 4 171 950848 1931.14 2507 2424 491.1
B 3 112 918145 1864.55 2507 2424 491.1
B 5 172 345642 698.85 2507 2424 491.1
C 14 254 379355 646.91 2495 2505 582.5
C 1 3 123761 208.15 2495 2505 582.5
C 12 2 104542 175.16 2495 2505 582.5
D 4 232 4020428 6817.27 2335 2263 589.4
D 13 249 3199402 5424.31 2335 2263 589.4
D 12 17 1675172 2838.28 2335 2263 589.4

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