ASTROSAT CZTI

Data Quality Report

Orbit 03673

Creation date: 2024-06-27T14:32:19.126927
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_201T01_9000000478_03673cztM0_level2.evt modeM0/AS1G05_201T01_9000000478_03673cztM0_level2_quad_clean.evt
Size (bytes)425,370,24059,054,400
Size405.7 MB 56.3 MB
Events in quadrant A3,160,620341,642
Events in quadrant B3,455,526338,140
Events in quadrant C2,920,348336,761
Events in quadrant D2,915,296329,492

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133482
B0142751
C0130591
D0133651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325610.964427%
B6325570.901186%
C6325270.426877%
D6325590.932806%

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 7380 6326 12 12 0.16% 0.19%
B 7380 6326 4 4 0.05% 0.06%
C 7380 6326 6 6 0.08% 0.09%
D 7380 6326 33 33 0.45% 0.52%

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 13 164 145143 948.12 740 723 152.3
A 0 50 91477 595.8 740 723 152.3
A 13 251 42033 271.2 740 723 152.3
B 15 204 434924 2985.3 750 733 145.4
B 14 167 33102 222.55 750 733 145.4
B 7 252 23878 159.13 750 733 145.4
C 9 247 91345 537.92 716 718 168.5
C 1 16 14151 79.73 716 718 168.5
C 4 253 6871 36.52 716 718 168.5
D 13 223 135992 788.34 711 691 171.6
D 13 239 40829 233.87 711 691 171.6
D 10 187 29061 165.3 711 691 171.6

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