ASTROSAT CZTI

Data Quality Report

Orbit 12054

Creation date: 2024-06-27T16:21:46.974015
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/AS1A03_085T02_9000001784_12054cztM0_level2.evt modeM0/AS1A03_085T02_9000001784_12054cztM0_level2_quad_clean.evt
Size (bytes)503,870,40085,847,040
Size480.5 MB 81.9 MB
Events in quadrant A3,185,268558,848
Events in quadrant B5,252,980530,769
Events in quadrant C2,948,515547,409
Events in quadrant D3,451,246528,667

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133942
B0200551
C0129261
D0141181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6217610.981181%
B62176199.956571%
C6217370.595142%
D6217821.318964%

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 7358 6218 0 0 0.00% 0.00%
B 7358 6218 396 396 5.38% 6.37%
C 7358 6218 1 1 0.01% 0.02%
D 7358 6218 41 41 0.56% 0.66%

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 1 162 36332 222.64 789 774 159.7
A 5 16 35792 219.26 789 774 159.7
A 1 178 18189 109.04 789 774 159.7
B 4 239 1340141 9275.88 760 744 144.4
B 0 85 402091 2779.49 760 744 144.4
B 15 204 213857 1475.9 760 744 144.4
C 14 234 7645 39.52 754 758 174.3
C 13 61 5517 27.31 754 758 174.3
C 7 247 2909 12.34 754 758 174.3
D 1 52 271570 1509.6 752 731 179.4
D 8 195 187427 1040.6 752 731 179.4
D 9 85 53607 294.72 752 731 179.4

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