ASTROSAT CZTI

Data Quality Report

Orbit 42666

Creation date: 2024-06-27T22:42:49.649632
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/AS1A05_013T01_9000005822_42666cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42666cztM0_level2_quad_clean.evt
Size (bytes)330,966,72090,394,560
Size315.6 MB 86.2 MB
Events in quadrant A3,120,581603,450
Events in quadrant B2,921,225612,373
Events in quadrant C2,617,811596,228
Events in quadrant D3,170,353546,404

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124062
B0122342
C0112002
D0131482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5409651.201701%
B5409611.127750%
C540970.129414%
D5409741.368090%

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 7112 5410 44 44 0.62% 0.81%
B 7112 5410 45 45 0.63% 0.83%
C 7112 5410 3 3 0.04% 0.06%
D 7112 5410 66 66 0.93% 1.22%

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 580920 4654.78 600 588 124.7
A 13 248 142953 1141.89 600 588 124.7
A 15 223 66541 529.0 600 588 124.7
B 10 246 228703 1985.99 590 572 114.9
B 0 245 163511 1418.46 590 572 114.9
B 15 85 67721 584.56 590 572 114.9
C 15 214 228715 1688.77 582 586 135.1
C 14 254 75282 552.95 582 586 135.1
C 3 233 20751 149.28 582 586 135.1
D 2 249 337569 2357.72 583 566 142.9
D 1 52 191930 1338.81 583 566 142.9
D 12 218 91335 635.03 583 566 142.9

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