ASTROSAT CZTI

Data Quality Report

Orbit 45399

Creation date: 2024-06-27T23:11:01.197502
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_45399cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45399cztM0_level2_quad_clean.evt
Size (bytes)476,161,92094,109,760
Size454.1 MB 89.8 MB
Events in quadrant A4,936,957640,862
Events in quadrant B2,776,773666,237
Events in quadrant C2,893,254629,472
Events in quadrant D6,561,819501,414

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189061
B0124661
C0129091
D0236051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58871582.683880%
B5888611.036005%
C58881141.936141%
D5888103317.544158%

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 6937 5887 16 16 0.23% 0.27%
B 6938 5888 3 3 0.04% 0.05%
C 6938 5888 61 61 0.88% 1.04%
D 6938 5888 1004 1004 14.47% 17.05%

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 2315232 16974.83 652 638 136.4
A 9 191 60420 438.43 652 638 136.4
A 13 248 18774 133.01 652 638 136.4
B 0 190 42187 319.48 655 635 130.1
B 4 67 39213 296.61 655 635 130.1
B 0 171 38366 290.1 655 635 130.1
C 12 2 107809 702.41 646 648 152.6
C 14 254 98022 638.26 646 648 152.6
C 0 207 87530 569.49 646 648 152.6
D 1 52 1411406 9219.31 603 585 153.0
D 13 249 1288817 8418.22 603 585 153.0
D 2 249 1169654 7639.53 603 585 153.0

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