ASTROSAT CZTI

Data Quality Report

Orbit 33384

Creation date: 2024-06-27T20:48:14.725814
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_064T02_9000004788_33384cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33384cztM0_level2_quad_clean.evt
Size (bytes)559,494,72058,521,600
Size533.6 MB 55.8 MB
Events in quadrant A2,641,582352,041
Events in quadrant B4,688,525353,339
Events in quadrant C3,126,900347,603
Events in quadrant D6,099,874318,758

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114963
B0175692
C0124772
D0222192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A571470.122506%
B571473812.915646%
C5714430.752538%
D57145279.222961%

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 7146 5715 0 0 0.00% 0.00%
B 7146 5715 455 455 6.37% 7.96%
C 7146 5715 34 34 0.48% 0.59%
D 7146 5715 477 477 6.68% 8.35%

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 9588 64.91 679 665 137.5
A 15 169 9586 64.89 679 665 137.5
A 3 137 6615 43.28 679 665 137.5
B 5 172 1269903 10303.35 641 625 123.2
B 0 219 565259 4583.41 641 625 123.2
B 5 255 94752 764.07 641 625 123.2
C 15 214 242835 1599.45 653 658 151.4
C 0 10 108574 712.73 653 658 151.4
C 14 254 92384 605.8 653 658 151.4
D 8 195 1587676 9909.31 640 621 160.2
D 2 250 517739 3228.8 640 621 160.2
D 12 218 456636 2847.28 640 621 160.2

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