ASTROSAT CZTI

Data Quality Report

Orbit 46183

Creation date: 2024-06-27T23:20:05.007602
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_093T40_9000006182_46183cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46183cztM0_level2_quad_clean.evt
Size (bytes)521,449,920104,028,480
Size497.3 MB 99.2 MB
Events in quadrant A5,801,321707,812
Events in quadrant B3,493,333735,225
Events in quadrant C2,944,364698,596
Events in quadrant D6,583,668576,557

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212011
B0143363
C0130371
D0238431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61892383.845532%
B61891131.825820%
C6189490.791727%
D618984813.701729%

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 7324 6189 64 64 0.87% 1.03%
B 7324 6189 22 22 0.30% 0.36%
C 7324 6190 8 8 0.11% 0.13%
D 7324 6189 758 758 10.35% 12.25%

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 2919694 19750.3 709 695 147.8
A 9 191 121383 816.59 709 695 147.8
A 13 254 10175 64.14 709 695 147.8
B 3 112 431632 3172.62 706 687 135.8
B 15 201 146845 1076.02 706 687 135.8
B 5 172 62861 457.73 706 687 135.8
C 12 2 115745 715.09 688 691 160.9
C 3 233 87123 537.2 688 691 160.9
C 14 254 40716 248.77 688 691 160.9
D 1 52 2247143 13397.32 665 642 167.7
D 2 37 609528 3631.17 665 642 167.7
D 5 222 539779 3215.22 665 642 167.7

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