ASTROSAT CZTI

Data Quality Report

Orbit 37299

Creation date: 2024-06-27T21:38:05.104216
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/AS1A10_103T07_9000005302_37299cztM0_level2.evt modeM0/AS1A10_103T07_9000005302_37299cztM0_level2_quad_clean.evt
Size (bytes)438,298,56072,025,920
Size418.0 MB 68.7 MB
Events in quadrant A2,898,596444,174
Events in quadrant B2,938,785454,743
Events in quadrant C3,039,026452,888
Events in quadrant D4,003,382423,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123813
B0125432
C0124142
D0159142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5796260.448585%
B5796250.431332%
C5796701.207729%
D57963986.866805%

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 9113 5798 10 10 0.11% 0.17%
B 9113 5798 11 11 0.12% 0.19%
C 9113 5798 60 60 0.66% 1.03%
D 9113 5798 394 394 4.32% 6.80%

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 10 83 272892 2047.64 658 645 133.0
A 6 10 22130 161.59 658 645 133.0
A 15 223 19743 143.64 658 645 133.0
B 0 213 82000 643.95 658 640 126.3
B 0 221 81985 643.84 658 640 126.3
B 12 18 80672 633.44 658 640 126.3
C 15 214 242943 1602.39 648 652 151.2
C 0 10 207376 1367.16 648 652 151.2
C 3 233 33559 217.63 648 652 151.2
D 10 253 1242067 8119.1 626 608 152.9
D 2 153 205274 1338.51 626 608 152.9
D 13 249 43519 280.64 626 608 152.9

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