ASTROSAT CZTI

Data Quality Report

Orbit 04298

Creation date: 2024-06-27T14:40:04.738676
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/AS1G05_219T01_9000000540_04298cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04298cztM0_level2_quad_clean.evt
Size (bytes)699,609,60084,332,160
Size667.2 MB 80.4 MB
Events in quadrant A3,107,229576,540
Events in quadrant B4,686,087559,603
Events in quadrant C7,208,884471,206
Events in quadrant D5,772,083518,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131882
B0179661
C0255565
D0213301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61171141.863659%
B61414317.018401%
C6118176028.767571%
D61185949.709055%

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 7411 6118 12 12 0.16% 0.20%
B 7411 6141 312 312 4.21% 5.08%
C 7411 6118 1650 1650 22.26% 26.97%
D 7411 6119 408 408 5.51% 6.67%

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 0 199 48945 307.18 760 745 156.9
A 15 234 34012 212.01 760 745 156.9
A 11 192 23767 146.72 760 745 156.9
B 14 167 1115861 7770.26 745 728 143.5
B 10 16 403633 2807.45 745 728 143.5
B 8 3 112861 781.34 745 728 143.5
C 9 144 4769155 32869.48 621 625 145.1
C 9 54 7219 45.45 621 625 145.1
C 13 61 5245 31.85 621 625 145.1
D 2 232 2005179 11686.49 713 693 171.5
D 2 63 689147 4013.8 713 693 171.5
D 2 136 154056 894.13 713 693 171.5

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