ASTROSAT CZTI

Data Quality Report

Orbit 43697

Creation date: 2024-06-27T22:54:41.893017
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_008T02_9000005900_43697cztM0_level2.fits modeM0/AS1A13_008T02_9000005900_43697cztM0_level2_quad_clean.evt
Size (bytes)789,315,840129,323,520
Size752.8 MB 123.3 MB
Events in quadrant A11,462,459800,873
Events in quadrant B4,934,806901,805
Events in quadrant C4,731,525883,666
Events in quadrant D7,453,902756,758

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0398833
B0201120
C0196990
D0278350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8228110513.429752%
B82292803.402601%
C82291361.652692%
D82298119.855389%

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 8228 8228 248 248 3.01% 3.01%
B 8229 8229 96 96 1.17% 1.17%
C 8229 8229 66 66 0.80% 0.80%
D 8229 8229 534 534 6.49% 6.49%

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 15 222 5681411 29631.13 916 897 191.7
A 10 83 934572 4870.31 916 897 191.7
A 15 223 813862 4240.65 916 897 191.7
B 5 235 420657 2254.9 945 918 186.1
B 12 3 202888 1085.01 945 918 186.1
B 15 35 133676 713.2 945 918 186.1
C 15 157 501040 2289.77 927 935 218.4
C 3 233 284531 1298.47 927 935 218.4
C 14 96 94070 426.42 927 935 218.4
D 4 221 805593 3319.12 901 876 242.4
D 14 210 604204 2488.47 901 876 242.4
D 5 235 321548 1322.64 901 876 242.4

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