ASTROSAT CZTI

Data Quality Report

Orbit 30499

Creation date: 2024-06-27T20:16:03.920367
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/AS1A10_053T22_9000004384_30499cztM0_level2.evt modeM0/AS1A10_053T22_9000004384_30499cztM0_level2_quad_clean.evt
Size (bytes)600,333,12084,551,040
Size572.5 MB 80.6 MB
Events in quadrant A3,606,151547,996
Events in quadrant B5,309,755549,577
Events in quadrant C3,744,428503,745
Events in quadrant D5,084,725508,916

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145712
B0199282
C0149922
D0194002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6446771.194539%
B64461402.171890%
C64461872.901024%
D64463074.762643%

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 7766 6447 2 2 0.03% 0.03%
B 7766 6447 0 0 0.00% 0.00%
C 7766 6447 56 56 0.72% 0.87%
D 7766 6447 265 265 3.41% 4.11%

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 8 192 23733 124.91 928 917 182.7
A 13 254 11352 57.13 928 917 182.7
A 3 137 8229 40.03 928 917 182.7
B 6 159 1682856 9919.11 907 888 169.6
B 0 229 57614 334.53 907 888 169.6
B 12 111 19983 112.61 907 888 169.6
C 0 10 175005 901.22 849 859 193.2
C 14 238 141544 728.06 849 859 193.2
C 3 233 54866 279.49 849 859 193.2
D 13 104 950329 4666.76 867 848 203.5
D 8 195 297514 1458.13 867 848 203.5
D 12 218 270900 1327.32 867 848 203.5

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