ASTROSAT CZTI

Data Quality Report

Orbit 11289

Creation date: 2024-06-27T16:10:49.474339
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/AS1A04_144T01_9000001652_11289cztM0_level2.evt modeM0/AS1A04_144T01_9000001652_11289cztM0_level2_quad_clean.evt
Size (bytes)582,102,720105,488,640
Size555.1 MB 100.6 MB
Events in quadrant A4,682,194680,386
Events in quadrant B4,293,365728,463
Events in quadrant C3,044,553720,958
Events in quadrant D5,189,836632,697

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181483
B0168372
C0131132
D0197422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61903275.282714%
B61904176.736672%
C6190220.355412%
D61905048.142165%

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 7525 6191 247 247 3.28% 3.99%
B 7525 6191 182 182 2.42% 2.94%
C 7525 6191 2 2 0.03% 0.03%
D 7525 6190 406 406 5.40% 6.56%

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 8 5 1373520 8939.11 764 752 153.6
A 14 238 140190 907.98 764 752 153.6
A 8 15 64269 413.61 764 752 153.6
B 4 239 1068708 7324.93 783 767 145.8
B 4 81 46260 312.03 783 767 145.8
B 0 219 34693 232.7 783 767 145.8
C 9 204 9459 48.41 777 783 179.2
C 13 61 5646 27.13 777 783 179.2
C 12 4 4320 19.74 777 783 179.2
D 1 52 762237 4366.11 732 713 174.4
D 10 253 623153 3568.68 732 713 174.4
D 12 157 478217 2737.71 732 713 174.4

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