ASTROSAT CZTI

Data Quality Report

Orbit 25080

Creation date: 2024-06-27T19:13:36.546897
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/AS1T03_206T01_9000003672_25080cztM0_level2.evt modeM0/AS1T03_206T01_9000003672_25080cztM0_level2_quad_clean.evt
Size (bytes)476,579,52081,593,280
Size454.5 MB 77.8 MB
Events in quadrant A2,905,058524,203
Events in quadrant B3,184,591532,937
Events in quadrant C2,937,656504,175
Events in quadrant D4,989,616481,055

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0630
B0630
C0630
D0630

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126630
B0134450
C0126790
D0191250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6130360.587276%
B6131550.897080%
C6131631.027565%
D61311903.099005%

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 7165 6130 0 0 0.00% 0.00%
B 7166 6132 12 12 0.17% 0.20%
C 7166 6132 2 2 0.03% 0.03%
D 7166 6132 146 146 2.04% 2.38%

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 13 254 9941 60.6 750 733 151.9
A 3 137 6680 39.14 750 733 151.9
A 0 226 6619 38.74 750 733 151.9
B 5 172 89575 626.26 747 731 141.9
B 0 190 85154 595.1 747 731 141.9
B 10 247 48036 333.45 747 731 141.9
C 14 238 113587 667.54 720 724 169.1
C 0 207 8479 45.87 720 724 169.1
C 13 61 5223 26.61 720 724 169.1
D 8 195 802215 4544.94 724 703 176.4
D 9 35 638502 3616.62 724 703 176.4
D 1 52 613652 3475.7 724 703 176.4

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