ASTROSAT CZTI

Data Quality Report

Orbit 36034

Creation date: 2022-08-09T22:38:58.924735
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/AS1T04_069T01_9000005158_36034cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36034cztM0_level2_quad_clean.evt
Size (bytes)481,559,04085,826,880
Size459.3 MB 81.9 MB
Events in quadrant A2,777,473565,176
Events in quadrant B3,396,105561,174
Events in quadrant C3,760,209550,200
Events in quadrant D4,255,798516,198

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119653
B0138322
C0147502
D0164372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A581470.120399%
B58141352.321981%
C58142594.454764%
D58142694.626763%

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 7158 5815 0 0 0.00% 0.00%
B 7158 5815 92 92 1.29% 1.58%
C 7158 5815 211 211 2.95% 3.63%
D 7158 5815 246 246 3.44% 4.23%

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 178539 1303.53 671 658 136.5
A 13 254 9622 65.69 671 658 136.5
A 3 137 6946 46.08 671 658 136.5
B 5 236 522986 4096.56 659 640 127.5
B 5 255 93134 725.4 659 640 127.5
B 0 190 92276 718.67 659 640 127.5
C 9 187 874685 5868.48 635 639 148.9
C 15 214 242511 1623.97 635 639 148.9
C 0 10 104276 695.83 635 639 148.9
D 12 235 813899 5190.25 635 616 156.7
D 10 118 427687 2725.5 635 616 156.7
D 12 227 165759 1053.92 635 616 156.7

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