ASTROSAT CZTI

Data Quality Report

Orbit 09975

Creation date: 2024-06-27T15:53:12.398806
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/AS1G07_047T01_9000001424_09975cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09975cztM0_level2_quad_clean.evt
Size (bytes)299,885,76040,628,160
Size286.0 MB 38.7 MB
Events in quadrant A2,919,815227,596
Events in quadrant B1,933,947245,928
Events in quadrant C1,764,894245,128
Events in quadrant D2,188,905227,685

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012036564
B08881256
C08484187
D09649298

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0842
C0844
D0842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39752355.911950%
B4029320.794242%
C404280.197922%
D4025601.490683%

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 5347 4094 162 162 3.03% 3.96%
B 5347 4115 5 5 0.09% 0.12%
C 5347 4121 0 0 0.00% 0.00%
D 5347 4122 58 58 1.08% 1.41%

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 13 251 1089724 11705.64 446 435 93.1
A 15 174 112118 1200.16 446 435 93.1
A 0 226 4008 38.39 446 435 93.1
B 0 85 59008 642.54 467 455 91.1
B 4 239 23516 253.06 467 455 91.1
B 0 214 14151 150.3 467 455 91.1
C 13 61 3387 27.78 451 453 105.6
C 14 67 2872 22.91 451 453 105.6
C 8 222 2396 18.4 451 453 105.6
D 1 52 225899 2017.46 439 428 111.8
D 2 16 112389 1001.8 439 428 111.8
D 8 195 55362 491.54 439 428 111.8

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