ASTROSAT CZTI

Data Quality Report

Orbit 44212

Creation date: 2024-06-27T23:00:35.735555
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_047T01_9000005970_44212cztM0_level2.fits modeM0/AS1A13_047T01_9000005970_44212cztM0_level2_quad_clean.evt
Size (bytes)559,457,280109,324,800
Size533.5 MB 104.3 MB
Events in quadrant A8,384,765733,511
Events in quadrant B4,066,409730,399
Events in quadrant C3,222,797734,277
Events in quadrant D4,534,685661,518

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295221
B0164841
C0140251
D0178781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64645047.797030%
B64655218.058778%
C6465520.804331%
D64652313.573086%

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 7649 6465 196 196 2.56% 3.03%
B 7650 6466 346 346 4.52% 5.35%
C 7650 6466 25 25 0.33% 0.39%
D 7650 6466 173 173 2.26% 2.68%

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 15 223 4082551 26816.07 741 728 152.2
A 10 83 1400357 9195.05 741 728 152.2
A 2 79 34172 219.71 741 728 152.2
B 5 172 1027318 7321.63 718 697 140.2
B 0 200 52918 372.43 718 697 140.2
B 4 170 35209 246.13 718 697 140.2
C 4 254 155668 910.81 723 727 170.1
C 14 254 132465 774.41 723 727 170.1
C 3 233 102200 596.5 723 727 170.1
D 2 249 780303 4363.18 716 697 178.7
D 1 52 660255 3691.31 716 697 178.7
D 13 249 184896 1030.9 716 697 178.7

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