ASTROSAT CZTI

Data Quality Report

Orbit 33529

Creation date: 2024-06-27T20:49:48.298310
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/AS1A11_037T01_9000004806_33529cztM0_level2.evt modeM0/AS1A11_037T01_9000004806_33529cztM0_level2_quad_clean.evt
Size (bytes)544,576,32095,653,440
Size519.3 MB 91.2 MB
Events in quadrant A2,542,882637,759
Events in quadrant B4,336,813633,748
Events in quadrant C3,816,151631,597
Events in quadrant D5,409,244593,209

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114892
B0166901
C0147751
D0200921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A572750.087306%
B57273225.622490%
C57271702.968395%
D57272153.754147%

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 7131 5728 1 1 0.01% 0.02%
B 7131 5728 247 247 3.46% 4.31%
C 7131 5728 142 142 1.99% 2.48%
D 7131 5728 189 189 2.65% 3.30%

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 11016 78.4 653 638 132.4
A 13 6 6404 43.56 653 638 132.4
A 3 137 6232 42.26 653 638 132.4
B 5 172 735494 5978.63 644 629 122.9
B 5 255 379220 3080.1 644 629 122.9
B 0 229 148277 1201.22 644 629 122.9
C 1 23 283096 1924.72 634 637 146.8
C 15 214 270681 1840.13 634 637 146.8
C 0 10 256964 1746.66 634 637 146.8
D 8 195 1745067 11106.6 627 611 157.1
D 2 250 204658 1299.13 627 611 157.1
D 13 249 196170 1245.08 627 611 157.1

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