ASTROSAT CZTI

Data Quality Report

Orbit 14534

Creation date: 2024-06-27T16:56:32.758349
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/AS1T02_049T01_9000002142_14534cztM0_level2.evt modeM0/AS1T02_049T01_9000002142_14534cztM0_level2_quad_clean.evt
Size (bytes)454,285,440115,649,280
Size433.2 MB 110.3 MB
Events in quadrant A3,246,584766,871
Events in quadrant B3,219,642774,716
Events in quadrant C3,285,077770,290
Events in quadrant D3,562,073734,427

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139233
B0139422
C0139752
D0154252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6541300.458645%
B6541480.733833%
C6541200.305764%
D6541640.978444%

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 7597 6543 2 2 0.03% 0.03%
B 7597 6543 2 2 0.03% 0.03%
C 7597 6543 0 0 0.00% 0.00%
D 7597 6543 35 35 0.46% 0.53%

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 261092 1684.11 761 744 154.6
A 12 189 31208 197.06 761 744 154.6
A 4 2 13224 80.73 761 744 154.6
B 0 189 75554 520.41 768 749 143.7
B 0 219 37995 259.11 768 749 143.7
B 10 245 33016 224.48 768 749 143.7
C 3 233 368022 2132.77 748 749 172.2
C 13 61 5343 26.68 748 749 172.2
C 1 5 1767 5.91 748 749 172.2
D 12 110 631301 3540.2 736 713 178.1
D 10 199 86773 483.15 736 713 178.1
D 2 234 25086 136.83 736 713 178.1

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