ASTROSAT CZTI

Data Quality Report

Orbit 05095

Creation date: 2024-06-27T14:51:14.335525
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_105T01_9000000644_05095cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05095cztM0_level2_quad_clean.evt
Size (bytes)458,447,04066,971,520
Size437.2 MB 63.9 MB
Events in quadrant A2,969,271418,260
Events in quadrant B3,426,458417,073
Events in quadrant C2,875,307394,148
Events in quadrant D4,191,224364,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128323
B0140722
C0127912
D0166402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62061131.820819%
B62061652.658717%
C6206731.176281%
D62065158.298421%

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 7461 6207 1 1 0.01% 0.02%
B 7461 6207 15 15 0.20% 0.24%
C 7461 6207 1 1 0.01% 0.02%
D 7461 6207 327 327 4.38% 5.27%

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 50 12354 75.04 766 752 154.6
A 12 194 7546 43.94 766 752 154.6
A 0 226 7468 43.44 766 752 154.6
B 4 80 229559 1567.91 770 753 145.9
B 15 204 153780 1048.63 770 753 145.9
B 5 200 29245 195.24 770 753 145.9
C 12 4 16394 93.77 730 732 167.0
C 1 16 8776 48.16 730 732 167.0
C 13 61 6059 31.89 730 732 167.0
D 13 235 591386 3450.74 709 687 171.2
D 13 239 449093 2619.49 709 687 171.2
D 12 22 206127 1200.14 709 687 171.2

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