ASTROSAT CZTI

Data Quality Report

Orbit 03070

Creation date: 2024-06-27T14:24:13.913907
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_238T03_9000000424_03070cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03070cztM0_level2_quad_clean.evt
Size (bytes)358,920,00080,568,000
Size342.3 MB 76.8 MB
Events in quadrant A2,425,207528,271
Events in quadrant B2,639,532526,507
Events in quadrant C2,796,331511,103
Events in quadrant D2,647,531502,422

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107513
B0112362
C0118592
D0116482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430
B0430
C0430
D0430

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A530660.113080%
B5306100.188466%
C5306460.866943%
D5306210.395778%

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 9616 5308 2 2 0.02% 0.04%
B 9616 5308 3 3 0.03% 0.06%
C 9616 5308 40 40 0.42% 0.75%
D 9616 5308 12 12 0.12% 0.23%

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 8 15 52094 423.68 600 587 121.6
A 14 238 21677 173.48 600 587 121.6
A 12 189 9298 71.65 600 587 121.6
B 15 204 125194 1083.36 600 586 115.0
B 0 219 72636 626.42 600 586 115.0
B 2 249 36640 313.46 600 586 115.0
C 14 223 402537 3010.35 574 578 133.5
C 0 219 53524 396.52 574 578 133.5
C 15 208 47380 350.51 574 578 133.5
D 2 152 147528 1053.22 579 564 139.5
D 2 136 59442 421.95 579 564 139.5
D 7 6 55553 394.08 579 564 139.5

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