ASTROSAT CZTI

Data Quality Report

Orbit 07743

Creation date: 2024-06-27T15:23:24.532581
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/AS1G06_064T01_9000001066_07743cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07743cztM0_level2_quad_clean.evt
Size (bytes)381,225,60081,017,280
Size363.6 MB 77.3 MB
Events in quadrant A2,738,734515,460
Events in quadrant B2,899,854530,715
Events in quadrant C2,735,464518,212
Events in quadrant D2,784,360491,394

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117212
B0121231
C0117051
D0119701

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5684260.457424%
B5684300.527797%
C5684210.369458%
D5684240.422238%

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 6969 5685 4 4 0.06% 0.07%
B 6969 5685 1 1 0.01% 0.02%
C 6969 5685 1 1 0.01% 0.02%
D 6969 5685 8 8 0.11% 0.14%

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 15 234 13066 86.69 705 689 142.8
A 8 15 7208 45.66 705 689 142.8
A 0 226 6835 43.05 705 689 142.8
B 0 219 79768 590.33 708 690 134.0
B 4 239 19854 143.06 708 690 134.0
B 4 170 19474 140.23 708 690 134.0
C 13 61 5380 29.06 700 704 160.9
C 8 222 2525 11.32 700 704 160.9
C 12 4 2091 8.62 700 704 160.9
D 2 152 106134 626.87 695 676 168.2
D 13 104 22577 130.19 695 676 168.2
D 2 14 15961 90.86 695 676 168.2

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